Cerulean Cave

Nameless Cave redirects here. For the location in Hoenn with a similar name, see Nameless Cavern.

Cerulean Cave Unknown Dungeon ハナダの洞窟 Hanada Cave "Wild Missingno. appeared!"
Map description:	A mysterious cave that is filled with terribly tough Pokémon. It is so dangerous, the Pokémon League is in charge of it.FRLG A cave that had collapsed once. It has been reconstructed.HGSS
Location:	Cerulean City
Region:	Kanto
Generations:	I, III, IV, VII
Location of Cerulean Cave in Kanto.
Pokémon world locations

Cerulean Cave (Japanese: ハナダの洞窟 Hanada Cave), introduced as Unknown Dungeon (Japanese: ななしのどうくつ Nameless Cave) in the Japanese Generation I games, is a cave located in the northwest corner of Cerulean City in Kanto.

The cave's moniker would later be reused for the Unknown Dungeon in Kalos, which is a direct reference to Cerulean Cave.

Names

Unknown Dungeon

The English name "Unknown Dungeon" is only found in Pokémon Stadium's game data. However, this name is not seen in-game, because this place is not selectable on the Pokémon location map from Stadium's Pokédex prior to Pokémon Stadium 2. Despite being virtually unused in the games themselves, this was still the most widely used name for the cave in Generation I times due to its usage by various official sources, such as the Trainer's Guide released together with the core series games, as well as the officially-licensed strategy guides by Prima Games and Nintendo Power.

This place is known as "ななしのどうくつ" (Nameless Cave) in the Japanese Generation I Town Map. This Japanese name is also found in the game data (but not seen in-game either) of the Japanese Pokémon Stadium, as well as the Japanese version of Pokémon Stadium.

Cerulean Cave

The English name "Cerulean Cave" was introduced in Pokémon Red, Blue, and Yellow (as seen in the Town Map, and also mentioned by the NPC who blocks the cave entrance), even though the Japanese version of these games used "ななしのどうくつ" (Nameless Cave) in the Town Map instead. It's also referred to as "the cavern close to Cerulean" in an e-mail message found in a computer in Cinnabar Lab. The English name "Cerulean Cave" is also used later in Pokémon Stadium 2 (on the Pokémon location map), as well as multiple core series games.

The Japanese katakana name "ハナダ どうくつ" (Hanada Cave), lacking the "の" between words, was also mentioned in the Generation I games. Specifically, this is said by the NPC who blocks the cave entrance, and is also mentioned in the email from the computer in Cinnabar Lab.

In Pokémon Gold, Silver, and Crystal, this cave is not named in-game due to fact that it is inaccessible. However, the English name "Cerulean Cave" is found in the game data nonetheless. Similarly, the equivalent Japanese katakana name "ハナダのどうくつ" (Hanada Cave), with the "の" between words, was introduced in the data of these Generation II games. This Japanese name was first used in-game in Pokémon Stadium 2's Pokédex's Pokémon location map, and then also used later in other core series games. Its kanji equivalent "ハナダの洞窟" was introduced in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!.

In the games

Cerulean Cave is home to a wide variety of high-level wild Pokémon. Mewtwo inhabits the deepest part of the cave.

The Pokémon League only permits Trainers who have entered the Hall of Fame to enter. In Pokémon FireRed and LeafGreen, players must further prove themselves before entering the cave, which is done by completing the quest on Sevii Islands and restoring the Network Machine of the Pokémon Network Center to operational status.

In Pokémon FireRed and LeafGreen, more Pokémon can be found only by fishing, while there are fewer different species of wild Pokémon found by walking around in the cave.

In Generation II, Cerulean Cave completely collapsed but the leftovers of Mewtwo's presence remain and are found in the lake near the cave, in the form of the item Berserk Gene. In Pokémon HeartGold and SoulSilver, Cerulean Cave has been rebuilt and Mewtwo can once again be found inside. An NPC blocks the entrance until the player has obtained all eight Kanto Gym Badges (as opposed to defeating the Pokémon League at Indigo Plateau, the requirement in the Generation I games and Pokémon FireRed and LeafGreen). In Pokémon HeartGold and SoulSilver, if Mew is brought along, it will sense Mewtwo's presence and act apprehensive.

Geography

Encountering Mewtwo in the cave in Let's Go, Pikachu! and Let's Go, Eevee!

Cerulean Cave is a large underground complex of maze-like tunnels which extend out from Cerulean City to the mountains beyond. With the dark entrance positioned on the outskirts of Cerulean City, only accessible by surfing down Route 24 to the entrance near the northern border of Cerulean City, the cave has been renowned for its mystery. The entrance to the cave looks like it has been carved out from a hillside, forming an indented entrance into the hill. An NPC guards the entrance to the cave and only allows Trainers who own all eight Kanto Gym Badges and have entered the Hall of Fame to enter.

At the deepest point of the cave lives Mewtwo, a Pokémon that can only be found in Cerulean Cave. Mewtwo was artificially created in the Pokémon Mansion before it became too powerful and escaped, exiling itself to the cave, never to be seen again.

Cerulean Cave has had many different layouts over time, getting a change from not only one generation to the next but also from one game release to the next. Despite these changes, the first floor is mostly unaffected and has a large underground lake which covers most of the area. Using the complex of stairs and ladders, Trainers can make their way around the lake and the first floor of the cave. They will reach the upper floor, which has no underground river, but a like maze-like structure formed by large boulders and rocks that must be maneuvered around in order to reach the end. Once Trainers get through the maze formation, they are able to climb the ladders and get around the underground lake on the basement floor, which will lead them straight to a dead end and to Mewtwo.

Items

Pokémon Red and Green

Item		Location	Games
	Nugget	1F, in the northwest area of the floor	Rᴶ  G
	Full Restore ×2	1F, in the southwest area of the floor 2F, in the eastern area of the floor; accessible from the ladder on the plateau north of the entrance	Rᴶ  G
	Max Elixer	1F, northernmost point of the large middle plateau	Rᴶ  G
	Rare Candy	1F, on a rock southwest of Max Elixer (hidden, broken)	Rᴶ  G
	Ultra Ball ×3	2F, in the southeast area of the floor, accessible from the ladder on the large middle plateau on 1F B1F, in the eastern area on the plateau B1F, on a lone rock near Max Revive (hidden, broken)	Rᴶ  G
	PP Up	2F, in the southwest area of the floor, accessible from the south ladder on the western plateau on 1F	Rᴶ  G
	Max Revive	B1F, in the northeast area of the floor	Rᴶ  G

Pokémon Red and Blue

The Japanese game Pokémon Blue has the same map and item locations as the international games Pokémon Red and Blue.

Item		Location	Games
	Max Elixer	1F, southwest of the northeasternmost ladder	R  B
	Nugget	1F, in the northwest area of the floor	R  B
	Rare Candy	1F, on a rock on the plateau east of the Full Restore (hidden)	R  B
	Full Restore ×2	1F, in the southwest area of the floor 2F, northwest of the center of the floor, accessible from the ladder on a plateau in the northwest area of 1F	R  B
	PP Up	2F, in the east area of the floor, accessible from the ladder on the plateau north of the entrance on 1F	R  B
	Ultra Ball ×3	2F, in the southwest area of the floor, accessible from the southwesternmost ladder on 1F B1F, near the center of the floor B1F, on a rock that stands out in the northeast area of the floor (hidden)	R  B
	Max Revive	B1F, in the northeast area of the floor	R  B

Pokémon Yellow

Item		Location	Games
	Max Elixer ×2	1F, northeast of the southwesternmost ladder B1F, in the north area of the floor	Y
	Rare Candy ×2	1F, near the southeast corner of the floor 2F, in the west area of the floor, accessible from the easternmost ladder in the northeast area of 1F	Y
	Ultra Ball ×4	1F, northeast of the center of the floor 2F, near the center of the floor, accessible from the southwesternmost ladder on 1F B1F, on the southwesternmost plateau B1F, near the northeast corner of the floor	Y
	Max Revive ×3	1F, in the east area of the floor 2F, southeast of the center of the floor, accessible from the southwesternmost ladder on 1F B1F, on the southwesternmost plateau	Y
	PP Up ×3	1F, on a lone rock south of the Ultra Ball (hidden) 2F, on the lone rock south of the center of the floor, accessible from the southwesternmost ladder on 1F (hidden) B1F, on a rock that stands out close to the waterway to the southwesternmost plateau (hidden)	Y
	Full Restore	2F, in the east area of the floor, accessible from the ladder in the east area of 1F	Y

Pokémon FireRed and LeafGreen

Item		Location	Games
	Nugget	1F, in the northwest area of the floor	FR  LG
	Ultra Ball ×3	1F, near the Nugget (hidden) 2F, in the southeast area of the floor, accessible from the ladder in the east area of 1F (requires Rock Smash) B1F, northeast of the center of the map, on a plateau	FR  LG
	Max Elixir	1F, northeast of the center of the floor, on a plateau	FR  LG
	Full Restore ×2	1F, in the southwest area of the floor 2F, in the east area of the floor, accessible from the northeasternmost ladder on 1F (requires Rock Smash)	FR  LG
	PP Up	2F, in the southwest area of the floor, accessible from the southwesternmost ladder on 1F (requires Rock Smash)	FR  LG
	Max Revive	B1F, in the northeast area of the floor	FR  LG

Pokémon HeartGold and SoulSilver

Item		Location	Games
	Nugget ×2	1F, near the northwest corner B1F, behind a lone breakable rock northeast of the rocks in the center (hidden)	HG  SS
	Hyper Potion	1F, on the wall behind the breakable rocks in the southwest corner (hidden)	HG  SS
	Full Restore	1F, along the south wall	HG  SS
	Revive	1F, on a small crystal in the middle (hidden)	HG  SS
	Max Elixir	1F, near the center, at the end of a bridge	HG  SS
	Sea Incense	1F, north edge	HG  SS
	Rare Candy	1F, in the far southeast corner (hidden)	HG  SS
	TM24 (Thunderbolt)	2F, northeast corner (requires Rock Smash)	HG  SS
	PP Up ×2	2F, west side of 2F 2F, in the isolated crystal in the bottom left (hidden)	HG  SS
	Zinc	2F, in the large open area on the east side (hidden)	HG  SS
	Full Heal	2F, in the large open area on the east side (hidden)	HG  SS
	Big Pearl	2F, in the large open area on the east side (hidden)	HG  SS
	Ultra Ball ×4	2F, west side 2F, in the large open area on the east side (hidden) B1F, west of the breakable rocks in the center (hidden) B1F, near the southwest corner	HG  SS
	Odd Incense	2F, near the center (requires Rock Smash)	HG  SS
	Protein	2F, near the northwest corner (hidden)	HG  SS
	Max Revive ×2	B1F, among the breakable rocks on the west side (hidden) B1F, northwest of the breakable rocks in the center	HG  SS
	Dusk Stone	B1F, center (requires Rock Climb)	HG  SS
	Electirizer	B1F, northeast corner (requires Rock Climb)	HG  SS
	Black Sludge	B1F, southeast corner	HG  SS

Rock Smash

Item		Location	Games
	Red Shard	Randomly found by smashing breakable rocks	HG  SS
	Blue Shard	Randomly found by smashing breakable rocks	HG  SS
	Yellow Shard	Randomly found by smashing breakable rocks	HG  SS
	Green Shard	Randomly found by smashing breakable rocks	HG  SS
	Heart Scale	Randomly found by smashing breakable rocks	HG  SS
	Revive	Randomly found by smashing breakable rocks	HG  SS
	Max Ether	Randomly found by smashing breakable rocks	HG  SS
	Star Piece	Randomly found by smashing breakable rocks	HG  SS

Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!

Item		Location	Games
	PP Max	1F, near the ladder in the northeast corner of the floor	P  E
	Full Heal	1F, at the end of the water	P  E
	Full Restore	1F, on the plateau near the entrance (hidden) (daily)	P  E
	Max Revive	1F, northwest of the eastern ladder	P  E
	Max Repel	1F, southwest of the northern ladder	P  E
	Max Lure	2F, northwest of the pair of ladders	P  E
	Ultra Ball ×5	2F, near some rocks along the southern wall	P  E
	Rare Candy	2F, northwest of the Ultra Balls	P  E
	Full Restore ×2	2F, near the east wall, east of the pair of ladders B1F southwest of the Escape Rope, on a plateau	P  E
	Escape Rope	B1F, near the northeast corner of the floor	P  E
	Max Elixir	B1F, in the south area of the floor	P  E
	Max Revive	B1F, southeast of the pair of ladders (hidden) (daily)	P  E
	PP Max	B1F, at the end of the water west of Mewtwo's plateau (hidden) (daily)	P  E
	Mewtwonite X	B1F, received from Green after defeating her	P  E
	Mewtwonite Y	B1F, received from Green after defeating her	P  E
	Poké Ball ×5	B1F, on the ground after defeating Green	P  E

Recurring hidden items

These items are hidden at certain spots of the cave and respawn occasionally or daily. The item received is not determined until it is picked up, so what the item is can be affected by resetting.

2F glowing spot

These hidden items respawn at random.

Item		Location	Games
	Poké Ball	2F, sometimes found on a glowing spot	P  E
	Great Ball	2F, sometimes found on a glowing spot	P  E
	Ultra Ball	2F, sometimes found on a glowing spot	P  E
	Ultra Ball ×10	2F, sometimes found on a glowing spot	P  E
	Master Ball	2F, sometimes found on a glowing spot	P  E
	Golden Razz Berry	2F, sometimes found on a glowing spot	P  E
	Golden Nanab Berry	2F, sometimes found on a glowing spot	P  E
	Golden Pinap Berry	2F, sometimes found on a glowing spot	P  E

2F crystal

This hidden item respawns daily.

Item		Location	Games
	Max Revive	2F, sometimes found on the crystal in the middle of the floor	P  E
	Dome Fossil	2F, sometimes found on the crystal in the middle of the floor	P  E
	Helix Fossil	2F, sometimes found on the crystal in the middle of the floor	P  E
	Old Amber	2F, sometimes found on the crystal in the middle of the floor	P  E

B1F plateau

This hidden item respawns daily.

Item		Location	Games
	Dome Fossil	B1F, sometimes found on the central plateau east of Mewtwo's plateau	P  E
	Helix Fossil	B1F, sometimes found on the central plateau east of Mewtwo's plateau	P  E
	Old Amber	B1F, sometimes found on the central plateau east of Mewtwo's plateau	P  E

Pokémon

Generation I

Cerulean Cave is only listed in the Town Map if the player uses this item while inside the cave. However, Cerulean Cave is not listed at all in the Pokémon location map from the Pokédex in the Generation I games. For instance, Rhydon is only available at the Cerulean Cave in Pokémon Red and Blue, but Rhydon's Pokédex map simply says "Area unknown". Similarly, Golbat is available in multiple places including the Cerulean Cave, but only the other places are shown in the Pokédex map.

Cerulean Cave is also absent from the Pokémon location map in the Pokédex from both the Japanese Pokémon Stadium and Pokémon Stadium, but it is present in Pokémon Stadium 2. As a result, the player may connect any Generation I or II core series game to Pokémon Stadium 2 via Transfer Pak and check their location in the Pokédex normally, including those Pokémon available in the Cerulean Cave.

1F

Pokémon	Games						Location	Levels	Rate
Arbok	R		B		Y		Cave	52	10%
Raichu	R		B		Y		Cave	53	4%
Sandslash	R		B		Y		Cave	52	10%
Golbat	R		B		Y		Cave	46	25%
Golbat	R		B		Y		Cave	50, 55	40%
Gloom	R		B		Y		Cave	55	10%
Parasect	R		B		Y		Cave	52	5%
Parasect	R		B		Y		Cave	54	5%
Venomoth	R		B		Y		Cave	49	10%
Venomoth	R		B		Y		Cave	54	5%
Kadabra	R		B		Y		Cave	49	5%
Weepinbell	R		B		Y		Cave	55	10%
Graveler	R		B		Y		Cave	45	15%
Magneton	R		B		Y		Cave	46	15%
Dodrio	R		B		Y		Cave	49	10%
Hypno	R		B		Y		Cave	46	15%
Ditto	R		B		Y		Cave	53	1%
Ditto	R		B		Y		Cave	55, 60	5%
Fishing
Magikarp	R		B		Y		Fishing Old Rod	5	100%
Poliwag	R		B		Y		Fishing Good Rod	10	50%
Goldeen	R		B		Y		Fishing Good Rod	10	50%
Slowbro	R		B		Y		Fishing Super Rod	23	25%
Kingler	R		B		Y		Fishing Super Rod	23	25%
Seadra	R		B		Y		Fishing Super Rod	23	25%
Goldeen	R		B		Y		Fishing Super Rod	25	40%
Seaking	R		B		Y		Fishing Super Rod	23	25%
Seaking	R		B		Y		Fishing Super Rod	35, 45, 55	60%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

2F

Pokémon	Games						Location	Levels	Rate
Sandslash	R		B		Y		Cave	56	10%
Wigglytuff	R		B		Y		Cave	54	5%
Golbat	R		B		Y		Cave	52, 57	40%
Gloom	R		B		Y		Cave	58	5%
Venomoth	R		B		Y		Cave	51	15%
Kadabra	R		B		Y		Cave	51	15%
Weepinbell	R		B		Y		Cave	58	5%
Graveler	R		B		Y		Cave	50	15%
Dodrio	R		B		Y		Cave	51	25%
Electrode	R		B		Y		Cave	52	10%
Marowak	R		B		Y		Cave	52	10%
Rhyhorn	R		B		Y		Cave	50	10%
Rhydon	R		B		Y		Cave	52	10%
Rhydon	R		B		Y		Cave	58, 60	5%
Chansey	R		B		Y		Cave	56	5%
Ditto	R		B		Y		Cave	55, 60	5%
Ditto	R		B		Y		Cave	60	10%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

B1F

Pokémon	Games						Location	Levels	Rate
Arbok	R		B		Y		Cave	57	5%
Raichu	R		B		Y		Cave	64	10%
Sandslash	R		B		Y		Cave	57	5%
Golbat	R		B		Y		Cave	54, 59	40%
Parasect	R		B		Y		Cave	64	10%
Graveler	R		B		Y		Cave	55	15%
Electrode	R		B		Y		Cave	55	15%
Marowak	R		B		Y		Cave	55	15%
Lickitung	R		B		Y		Cave	50, 55	5%
Rhyhorn	R		B		Y		Cave	52	10%
Rhydon	R		B		Y		Cave	55	25%
Rhydon	R		B		Y		Cave	62	10%
Chansey	R		B		Y		Cave	64	10%
Chansey	R		B		Y		Cave	56	5%
Ditto	R		B		Y		Cave	63, 65, 67	10%
Ditto	R		B		Y		Cave	60, 65	15%
Fishing
Magikarp	R		B		Y		Fishing Old Rod	5	100%
Poliwag	R		B		Y		Fishing Good Rod	10	50%
Goldeen	R		B		Y		Fishing Good Rod	10	50%
Slowbro	R		B		Y		Fishing Super Rod	23	25%
Kingler	R		B		Y		Fishing Super Rod	23	25%
Seadra	R		B		Y		Fishing Super Rod	23	25%
Goldeen	R		B		Y		Fishing Super Rod	30	40%
Seaking	R		B		Y		Fishing Super Rod	23	25%
Seaking	R		B		Y		Fishing Super Rod	40, 50, 60	60%
Special Pokémon
Mewtwo	R		B		Y		Only one	70	One
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Generation III

1F

Pokémon	Games						Location	Levels	Rate
Parasect	FR			LG			Cave	49, 58	25%
Magneton	FR			LG			Cave	49	20%
Golbat	FR			LG			Cave	46, 55	14%
Primeape	FR			LG			Cave	52, 61	11%
Ditto	FR			LG			Cave	52, 61	11%
Machoke	FR			LG			Cave	46	10%
Electrode	FR			LG			Cave	58	5%
Wobbuffet	FR			LG			Cave	55	4%
Surfing
Psyduck	FR			LG			Surfing	30-50	65%
Slowpoke	FR			LG			Surfing	30-50	65%
Golduck	FR			LG			Surfing	40-55	35%
Slowbro	FR			LG			Surfing	40-55	35%
Fishing
Magikarp	FR			LG			Fishing Old Rod	5	100%
Poliwag	FR			LG			Fishing Good Rod	5-15	60%
Goldeen	FR			LG			Fishing Good Rod	5-15	20%
Magikarp	FR			LG			Fishing Good Rod	5-15	20%
Poliwag	FR			LG			Fishing Super Rod	15-25	40%
Poliwhirl	FR			LG			Fishing Super Rod	20-30	40%
Gyarados	FR			LG			Fishing Super Rod	15-25	15%
Psyduck	FR			LG			Fishing Super Rod	15-35	5%
Slowpoke	FR			LG			Fishing Super Rod	15-35	5%
Rock Smash
Geodude	FR			LG			Rock Smash	30-50	65%
Graveler	FR			LG			Rock Smash	40-55	35%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

2F

Pokémon	Games						Location	Levels	Rate
Golbat	FR			LG			Cave	49, 58	25%
Machoke	FR			LG			Cave	49	20%
Parasect	FR			LG			Cave	52, 61	14%
Kadabra	FR			LG			Cave	55, 64	11%
Ditto	FR			LG			Cave	55, 64	11%
Magneton	FR			LG			Cave	52	10%
Wobbuffet	FR			LG			Cave	58	5%
Electrode	FR			LG			Cave	61	4%
Rock Smash
Geodude	FR			LG			Rock Smash	35-55	65%
Graveler	FR			LG			Rock Smash	45-60	35%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

B1F

Pokémon	Games						Location	Levels	Rate
Kadabra	FR			LG			Cave	58, 67	25%
Ditto	FR			LG			Cave	58, 67	25%
Parasect	FR			LG			Cave	55, 64	14%
Golbat	FR			LG			Cave	52, 61	11%
Machoke	FR			LG			Cave	52	10%
Magneton	FR			LG			Cave	55	10%
Electrode	FR			LG			Cave	64	4%
Wobbuffet	FR			LG			Cave	61	1%
Surfing
Psyduck	FR			LG			Surfing	40-60	65%
Slowpoke	FR			LG			Surfing	40-60	65%
Golduck	FR			LG			Surfing	50-65	35%
Slowbro	FR			LG			Surfing	50-65	35%
Fishing
Magikarp	FR			LG			Fishing Old Rod	5	100%
Poliwag	FR			LG			Fishing Good Rod	5-15	60%
Goldeen	FR			LG			Fishing Good Rod	5-15	20%
Magikarp	FR			LG			Fishing Good Rod	5-15	20%
Poliwag	FR			LG			Fishing Super Rod	15-25	40%
Poliwhirl	FR			LG			Fishing Super Rod	20-30	40%
Gyarados	FR			LG			Fishing Super Rod	15-35	16%
Psyduck	FR			LG			Fishing Super Rod	15-25	4%
Slowpoke	FR			LG			Fishing Super Rod	15-25	4%
Rock Smash
Geodude	FR			LG			Rock Smash	40-60	65%
Graveler	FR			LG			Rock Smash	50-65	35%
Special Pokémon
Mewtwo	FR			LG			Only one	70	One
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Generation IV

1F

Pokémon	Games						Location	Levels	Rate
Electrode	HG			SS			Cave	40	5%
Wobbuffet	HG			SS			Cave	37	5%
Machoke	HG			SS			Cave	39-40	24%	24%	6%
Parasect	HG			SS			Cave	38	20%	20%	10%
Primeape	HG			SS			Cave	38-39	14%	14%	0%
Primeape	HG			SS			Cave	39	0%	0%	4%
Persian	HG			SS			Cave	38-39	14%	14%	0%
Persian	HG			SS			Cave	39	0%	0%	4%
Magneton	HG			SS			Cave	40	11%	11%	10%
Ditto	HG			SS			Cave	39-40	11%	11%	10%
Golbat	HG			SS			Cave	38	10%	10%	0%
Golbat	HG			SS			Cave	38-39	0%	0%	50%
Surfing
Psyduck	HG			SS			Surfing	35-40	90%
Golduck	HG			SS			Surfing	40	10%
Fishing
Magikarp	HG			SS			Fishing Old Rod	10	100%
Poliwag	HG			SS			Fishing Good Rod	20	45%
Goldeen	HG			SS			Fishing Good Rod	20	40%
Magikarp	HG			SS			Fishing Good Rod	20	15%
Poliwag	HG			SS			Fishing Super Rod	40	40%
Poliwhirl	HG			SS			Fishing Super Rod	40	30%
Gyarados	HG			SS			Fishing Super Rod	40	30%
Rock Smash
Geodude	HG			SS			Rock Smash	23	90%
Graveler	HG			SS			Rock Smash	26-30	10%
Special Pokémon
Makuhita	HG			SS			Hoenn Sound	39-40	20%
Absol	HG			SS			Hoenn Sound	38	20%
Chingling	HG			SS			Sinnoh Sound	39-40	20%
Bronzor	HG			SS			Sinnoh Sound	38	20%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

2F

Pokémon	Games						Location	Levels	Rate
Golbat	HG			SS			Cave	41	10%	10%	0%
Golbat	HG			SS			Cave	41-42	0%	0%	20%
Parasect	HG			SS			Cave	40	20%
Kadabra	HG			SS			Cave	42	20%
Machoke	HG			SS			Cave	39-42	20%	20%	0%
Machoke	HG			SS			Cave	39	0%	0%	10%
Magneton	HG			SS			Cave	41	10%
Electrode	HG			SS			Cave	41	5%
Ditto	HG			SS			Cave	42	10%
Wobbuffet	HG			SS			Cave	42	5%
Fishing
Magikarp	HG			SS			Fishing Old Rod	10	100%
Poliwag	HG			SS			Fishing Good Rod	20	45%
Goldeen	HG			SS			Fishing Good Rod	20	40%
Magikarp	HG			SS			Fishing Good Rod	20	15%
Poliwag	HG			SS			Fishing Super Rod	40	40%
Poliwhirl	HG			SS			Fishing Super Rod	40	30%
Gyarados	HG			SS			Fishing Super Rod	40	30%
Special Pokémon
Makuhita	HG			SS			Hoenn Sound	41-42	20%
Absol	HG			SS			Hoenn Sound	39-41	20%
Chingling	HG			SS			Sinnoh Sound	41-42	20%
Bronzor	HG			SS			Sinnoh Sound	39-41	20%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

B1F

Pokémon	Games						Location	Levels	Rate
Parasect	HG			SS			Cave	45-47	25%
Kadabra	HG			SS			Cave	46	20%
Magneton	HG			SS			Cave	45-47	15%
Golbat	HG			SS			Cave	47	10%
Machoke	HG			SS			Cave	45	10%
Ditto	HG			SS			Cave	45	10%
Electrode	HG			SS			Cave	46	5%
Wobbuffet	HG			SS			Cave	49	5%
Surfing
Psyduck	HG			SS			Surfing	35-40	90%
Golduck	HG			SS			Surfing	40	10%
Fishing
Magikarp	HG			SS			Fishing Old Rod	10	100%
Poliwag	HG			SS			Fishing Good Rod	20	45%
Goldeen	HG			SS			Fishing Good Rod	20	40%
Magikarp	HG			SS			Fishing Good Rod	20	15%
Poliwag	HG			SS			Fishing Super Rod	40	40%
Poliwhirl	HG			SS			Fishing Super Rod	40	30%
Gyarados	HG			SS			Fishing Super Rod	40	30%
Rock Smash
Geodude	HG			SS			Rock Smash	22	90%
Graveler	HG			SS			Rock Smash	26	10%
Special Pokémon
Mewtwo	HG			SS			Only one	70	One
Makuhita	HG			SS			Hoenn Sound	45	20%
Absol	HG			SS			Hoenn Sound	45-47	20%
Chingling	HG			SS			Sinnoh Sound	45	20%
Bronzor	HG			SS			Sinnoh Sound	45-47	20%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Generation VII

1F

Pokémon	Games						Location	Levels	Rate
Zubat	P			E			Cave	51-56	10%
Golbat	P			E			Cave	51-56	15%
Psyduck	P			E			Cave	51-56	5%
Golduck	P			E			Cave	51-56	15%
Geodude	P			E			Cave	51-56	10%
Graveler	P			E			Cave	51-56	15%
Lickitung	P			E			Cave	51-56	10%
Rhyhorn	P			E			Cave	51-56	10%
Rhydon	P			E			Cave	51-56	5%
Ditto	P			E			Cave	51-56	5%
Rare Spawns
Snorlax	P			E			Cave	51-56	-
Sea Skim
Poliwag	P			E			Sea Skim	51-56	45%
Poliwhirl	P			E			Sea Skim	51-56	9%
Poliwrath	P			E			Sea Skim	51-56	1%
Magikarp	P			E			Sea Skim	51-56	45%
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

2F

Pokémon	Games						Location	Levels	Rate
Zubat	P			E			Cave	51-56	5%
Golbat	P			E			Cave	51-56	20%
Geodude	P			E			Cave	51-56	5%
Graveler	P			E			Cave	51-56	20%
Lickitung	P			E			Cave	51-56	15%
Rhyhorn	P			E			Cave	51-56	10%
Rhydon	P			E			Cave	51-56	10%
Chansey	P			E			Cave	51-56	10%
Ditto	P			E			Cave	51-56	5%
Rare Spawns
Snorlax	P			E			Cave	51-56	-
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

B1F

Pokémon	Games						Location	Levels	Rate
Zubat	P			E			Cave	51-56	10%
Golbat	P			E			Cave	51-56	15%
Psyduck	P			E			Cave	51-56	5%
Golduck	P			E			Cave	51-56	15%
Geodude	P			E			Cave	51-56	10%
Graveler	P			E			Cave	51-56	15%
Lickitung	P			E			Cave	51-56	10%
Rhyhorn	P			E			Cave	51-56	10%
Rhydon	P			E			Cave	51-56	5%
Ditto	P			E			Cave	51-56	5%
Rare Spawns
Snorlax	P			E			Cave	51-56	-
Sea Skim
Poliwag	P			E			Sea Skim	51-56	45%
Poliwhirl	P			E			Sea Skim	51-56	9%
Poliwrath	P			E			Sea Skim	51-56	1%
Magikarp	P			E			Sea Skim	51-56	45%
Special Pokémon
Mewtwo	P			E			Only one	70	One
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Trainers

Generation VII

Pokémon Trainer Green Cerulean Cave Let's Go, Pikachu! and Let's Go, Eevee! Reward: $19,040

Type: Fairy Unknown Ability: No Ability Held item: None Clefable♀ Lv.66 Moonblast Fairy Special   --       Light Screen Psychic Status   --       Reflect Psychic Status   --       Tri Attack Normal Special   --       Types: Ghost Poison Ability: No Ability Held item: None Gengar♂ Lv.66 Dark Pulse Dark Special   --       Shadow Ball Ghost Special   --       Sludge Bomb Poison Special   --       Will-O-Wisp Fire Status   --       Types: Grass Poison Ability: No Ability Held item: None Victreebel♂ Lv.66 Power Whip Grass Physical   --       Poison Jab Poison Physical   --       Sucker Punch Dark Physical   --       Leech Life Bug Physical   --       Type: Fire Unknown Ability: No Ability Held item: None Ninetales♀ Lv.66 Fire Blast Fire Special   --       Dark Pulse Dark Special   --       Foul Play Dark Physical   --       Hyper Beam Normal Special   --       Type: Normal Unknown Ability: No Ability Held item: None Kangaskhan♀ Lv.66 Dizzy Punch Normal Physical   --       Sucker Punch Dark Physical   --       Thunder Punch Electric Physical   --       Brick Break Fighting Physical   --       Type: Water Unknown Ability: No Ability Held item: None Blastoise♂ Lv.68 Hydro Pump Water Special   --       Flash Cannon Steel Special   --       Ice Beam Ice Special   --       Fake Out Normal Physical   --

Layout

The layout of the cave has been tweaked several times in the past, particularly in Generation I.

In Pokémon FireRed and LeafGreen, it has been restored to the original layout found in Pokémon Red and Green, with the addition of breakable rocks.

In Pokémon HeartGold and SoulSilver, the layout of the first and second floors is based on the equivalent layout from Pokémon FireRed and LeafGreen, while the layout of the basement is based on the respective layout from Pokémon Yellow. Breakable rocks are also present and Rock Climb surfaces were added.

Version	1F	2F	B1F
Red (J)
Green
Red
Blue Blue (J)
Yellow
FireRed
LeafGreen
HeartGold
SoulSilver

Preview

• 

  FRLG

• 

  HGSS Morning (Ditto)

• 

  HGSS Day/Evening (Ditto)

• 

  HGSS Night (Magneton)

In the anime

In Pokémon Origins

Cerulean Cave's entrance in Pokémon Origins

Cerulean Cave's interior in Pokémon Origins

Cerulean Cave appeared in File 4: Charizard. It was first mentioned by Blue, who had gone to the cave after hearing rumors of an extremely strong Pokémon living in there. He intended to catch it, but got badly injured while battling it when his Blastoise was sent flying and crashed on top of him. After he had told Professor Oak and Red about this, Red soon recalled the journals he had found at the Pokémon Mansion at Cinnabar Island, and understood that the mysterious Pokémon was in fact Mewtwo, an artificial Pokémon created by enhancing the powers of Mew.

Wanting to help Professor Oak to complete the Pokédex, Red then headed to Cerulean Cave, where he encountered Mewtwo. Being amazingly strong and durable, Mewtwo was capable of defeating almost all of Red's Pokémon, excluding only his Charizard. At first, even Charizard was losing, and was sent into the waters of the cave, along with Red. However, Red's Key Stone and Charizard's Mega Stone then activated, Mega Evolving Charizard into Mega Charizard X and making it able to defeat Mewtwo, allowing Red to catch it.

In the manga

In the Pokémon Adventures manga

Cerulean Cave in Pokémon Adventures

Cerulean Cave appeared in And Mewtwo Too?! and And Mewtwo... Three!. Upon hearing from Bill about a monster that had caused massive destruction in the northwest sector of Cerulean City, Red went to investigate Cerulean Cave, where the monster was said to have fled to. Once Red arrived at the cave, he and his Pokémon were soon caught in a tornado, which seemed to originate from inside the cave. Red and his Pokémon were saved from being blown away by Blaine and his Rapidash. Blaine explained that the tornado was actually Psywave, a Psychic-type move capable of both attacking and defending at the same time, and the user of the move was Mewtwo, the "beast" sighted in Cerulean City.

To Red's horror, Blaine revealed that he, while working as a scientist in Team Rocket, had been involved in Mewtwo's creation. Since Team Rocket had been unable to get enough of Mew's DNA to complete the Genetic Pokémon, Blaine had finished it by using cells from his own arm. In the process, some of Mewtwo's cells ended up in his arm, causing it to be horribly mutatated. This also gave both him and Mewtwo the ability to sense each other's presence. However, the mutated cells in his arm were slowly spreading to the rest of his body, and would eventually kill him. Realizing what kind of an abomination he had created, Blaine had subsequently left Team Rocket.

Blaine was determined to destroy the monster he himself had created, even if it would cost him his life. After putting Red inside of a protective fireball, he and Rapidash charged through the Psywave tornado at Mewtwo, creating a massive explosion. Despite the hit, Mewtwo was still capable of fighting. As Blaine was down for the count, Red tried to battle Mewtwo himself, sending out Poli. However, Mewtwo easily knocked the Tadpole Pokémon back with a giant spoon it created. Blaine explained that Mewtwo would form its Psywave into a tornado while fighting multiple enemies at once, and into a spoon for a single enemy. This gave Red an idea, and he sent out all of his Pokémon, causing Mewtwo to switch into its tornado tactic again. However, before the tornado got to full power, Red dived into the eye of the storm with Aero, and sent Pika diving further down into Mewtwo itself, capturing it with the Master Ball Blaine had given Red just moments earlier. Afterwards, Red gave Mewtwo to Blaine, telling him to teach it the kindness of humans, before heading off to the Indigo Plateau.

Trivia

• In the Generation I handheld games, the nest feature of the Pokédex never displays Pokémon as appearing in Cerulean Cave, likely to keep its existence as a secret until the player beats the game. However, the Pokémon Stadium games do display Pokémon appearing here.

In other languages

Cerulean Cave Language Title Chinese Cantonese 華藍洞窟 Wàhlàahm Duhngfāt Mandarin 華藍洞窟 / 华蓝洞窟 Huálán Dòngkū French Caverne Azurée German Azuria-Höhle Italian Grotta Celeste Korean 블루시티동굴 Blue City Donggul Brazilian Portuguese Caverna de Cerulean Spanish Cueva Celeste Vietnamese Hang động Hanada

Unknown Dungeon Language Title Danish Det Ukendte Tårn* French Canada Grotte Inconnue Europe Grotte Inconnue German Geheimdungeon Italian Grotta Ignota Brazilian Portuguese Calabouço Desconhecido Spanish Mazmorra Rara

Kanto
Settlements Pallet Town • Viridian City • Pewter City • Cerulean City • Vermilion City • Lavender Town Celadon City • Saffron City • Fuchsia City • Cinnabar Island • Indigo Plateau Routes 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 Landmarks Professor Oak's Laboratory • Viridian Forest • Diglett's Cave • Pewter Museum of Science • Mt. Moon (Square) • Cerulean Cave Underground Path (Kanto Routes 5–6) • Underground Path (Kanto Routes 7–8) • S.S. Anne • S.S. Aqua • Sea Cottage • Rock Tunnel Power Plant • Cycling Road/Pokémon Road • Team Rocket Hideout • Silph Co. • Magnet Train • Pokémon Tower • Safari Zone/Pal Park GO Park • Seafoam Islands • Pokémon Mansion • Cinnabar Lab • Pokémon League Reception Gate • Victory Road • Tohjo Falls Access to Sevii Islands • Johto

Game locations of Legendary and Mythical Pokémon

Kanto Seafoam Islands • Power Plant • Victory Road • Cerulean Cave Route 10 • Route 25 • Pewter City • Roaming Pokémon Sevii Islands Mt. Ember • Navel Rock • Birth Island Johto Ilex Forest • Bell Tower • Whirl Islands • Mt. Silver Cave Burned Tower • Embedded Tower • Roaming Pokémon Hoenn Desert Ruins • Island Cave • Ancient Tomb • Cave of Origin • Marine Cave Terra Cave • Sky Pillar • Southern Island • Sea Mauville • Scorched Slab Pathless Plain • Nameless Cavern • Fabled Cave • Gnarled Den Trackless Forest • Crescent Isle • Sky • Roaming Pokémon Sinnoh Acuity Cavern • Valor Cavern • Spear Pillar • Turnback Cave Rock Peak Ruins • Iceberg Ruins • Iron Ruins • Snowpoint Temple Stark Mountain • Newmoon Island • Flower Paradise • Hall of Origin Ramanas Park • Floaroma Town • Roaming Pokémon Unova Guidance Chamber • Trial Chamber • Rumination Field • N's Castle • Abundant Shrine Giant Chasm • Dragonspiral Tower • Liberty Garden • Route 11 • Route 13 • Route 22 Route 23 • Celestial Tower • Nacrene City • Underground Ruins • Twist Mountain Dreamyard • Marvelous Bridge • Reversal Mountain • Coastal Biome • Roaming Pokémon Kalos Sea Spirit's Den • Team Flare Secret HQ • Terminus Cave Unknown Dungeon • Roaming Pokémon Alola Route 16 • Altar of the Sunne • Altar of the Moone • Mount Lanakila • Mahalo Trail Ruins of Conflict • Ruins of Life • Ruins of Abundance • Ruins of Hope Aether Paradise • Ancient Poni Path • Lake of the Sunne • Lake of the Moone Ten Carat Hill • Resolution Cave Galar Tower summit • Battle Tower • Master Dojo • Crown Shrine • Max Lair Rock Peak Ruins • Iceberg Ruins • Iron Ruins • Split-Decision Ruins • Giant's Bed Frigid Sea • Lakeside Cave • Ballimere Lake • Freezington • Roaming Pokémon Hisui Seaside Hollow • Temple of Sinnoh • Acuity Cavern • Valor Cavern • Verity Cavern Lava Dome Sanctum • Moonview Arena • Snowpoint Temple • Turnback Cave • Bonechill Wastes Cobalt Coastlands • Ramanas Island • Scarlet Bog • Coronet Highlands • Floaro Gardens Paldea Grasswither Shrine • Icerend Shrine • Groundblight Shrine • Firescourge Shrine Poco Path • Area Zero • Area Zero Underdepths • Glaseado Mountain South Province (Area One) • Asado Desert • West Province (Area One) • East Province (Area Three) Casseroya Lake • North Paldean Sea • South Province (Area Four) • North Province (Area Two) Alfornada Cavern • Great Crater of Paldea • Tagtree Thicket • East Province (Area One) South Province (Area Five) • Dalizapa Passage • Pokémon League • Socarrat Trail Kitakami Paradise Barrens • Wistful Fields • Oni Mountain • Dreaded Den • Loyalty Plaza Other Faraway Island • Distortion World • Sinjoh Ruins • Ultra Space Wilds

This article is part of Project Locations, a Bulbapedia project that aims to write comprehensive articles on every location in the Pokémon world.