Kanto Route 20

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Kanto
Route 20
20番水道
Sea Route 20
Kanto Route 20 HGSS.png
Map description
A popular path with swimmers. The Seafoam Islands are also here.HGSS
An ocean route separated down the middle by the Seafoam Islands.PE
Required for navigation
Connecting locations
Cinnabar Island
Route 20
Route 19
Location
Kanto Route 20
Location of Route 20 in Kanto.
Kanto Route 20 RBY.png Kanto Route 20 GSC.png Kanto Route 20 FRLG.png
Gen I Gen II Gen III
Pokémon world routes
Route 19       Route 21

Route 20 (Japanese: 20番水道 Water Route 20), known as Sea Route 20 in Generation I, is a water route located in southern Kanto. It connects Route 19 in the east to Cinnabar Island in the west. The Seafoam Islands are located on this route.

Route description

From the southern entrance to the caves underneath Seafoam (guarded by a Trainer in Generations III, IV, and VII), Route 20 curves west, passing south of Route 19's western terminus through a narrow channel before expanding to the width of Route 19 west of the Seafoam Islands. In every Generation, there is a small rest platform just west of the Seafoam Islands (though this has become a single, large island in Generation IV). This rest area is occupied by a Trainer in Generation I, III, IV, and VII.

Depending on the generation, the layout of Route 20 between this point and Cinnabar varies.

Generation I

From the rest station, there are three more Trainers, two of which are located very close to each other, before arriving at Cinnabar. There are also two more Trainers along Route 20, one near the western shore of the Seafoam Islands and another just south of the Seafoam entrance on Route 20 in the water.

Generation II

The length of Route 20 was cut by half in the second generation, which resulted in the number of Trainers being cut to three. Also, the labyrinth of rocks that were present around Seafoam, prohibiting direct access to Route 19 from Route 20 and vice versa, were removed. The only item of interest between the rest station and Cinnabar Island is a lone Trainer southwest of the platform.

Generations III and VII

Unlike other generations, Generations III and VII featured four rest islands, twoFRLG or threePE of which contain Trainers. From the rest island present in all generations westward, the route passes north of a small island (with Trainers directly to the north and west of it, and the island occupied by a Trainer in Generation VII only) before heading south of the largest rest island on the route, north of another small island with a Trainer and north of another Trainer before coming to Cinnabar.

Generation IV

The route is the same in length as Generations I and III. The only noticeable change is that the rest islands from Generation III have combined into a large strip of land that goes along the bottom of the route. There are four Trainers on this island as well as three Swimmers and a Picnicker at the Seafoam entrance. Unlike in Generation II, the barrier that forces the player to travel through the islands' caves remains.

Items

Item Location Games
Revive Revive On a lone rock near the southwest corner of the eastern half of the route (requires Sea Skim) (hidden) (daily)  P  E 
Heart Scale Heart Scale Next to the southern Seafoam Islands entrance  P  E 
Revive Revive ×2
  • On a lone rock in the northeast corner of the western half of the route (requires Sea Skim) (hidden) (daily)
  • On a lone rock on the western half of the route, west of Swimmer Dean (requires Sea Skim) (hidden) (daily)
 P  E 
Ultra Ball Ultra Ball ×3 On the island where Bird Keeper Roger stands  P  E 
Max Repel Max Repel On the large unoccupied island near Cinnabar Island  P  E 
Stardust Stardust On the island nearest Cinnabar Island, where Ace Trainer Marty stands (hidden) (daily)  P  E 
Stardust Stardust On the large unoccupied island near Cinnabar Island (hidden recurring item; group B)  FR  LG 
Stardust Stardust On the northeast corner of the long, narrow sandbar on Cinnabar's side (hidden)  HG  SS 
Deep Sea Tooth DeepSeaTooth To the right of the entrance to Blaine's Gym (hidden)  HG  SS 
Deep Sea Scale DeepSeaScale North of Seafoam Islands, near Swimmer Luis (hidden)  HG  SS 

Pokémon

Generation I

Pokémon Games Location Levels Rate
Surfing
Tentacool Tentacool
R B Y
Surfing Surfing
5, 10, 15, 20, 30, 35, 40 100%
Fishing
Magikarp Magikarp
R B Y
Old Rod Fishing
Old Rod
5 100%
Poliwag Poliwag
R B Y
Good Rod Fishing
Good Rod
10 50%
Goldeen Goldeen
R B Y
Good Rod Fishing
Good Rod
10 50%
Tentacool Tentacool
R B Y
Super Rod Fishing
Super Rod
20 40%
Tentacruel Tentacruel
R B Y
Super Rod Fishing
Super Rod
20, 40 40%
Shellder Shellder
R B Y
Super Rod Fishing
Super Rod
15 25%
Horsea Horsea
R B Y
Super Rod Fishing
Super Rod
15 25%
Goldeen Goldeen
R B Y
Super Rod Fishing
Super Rod
15 25%
Staryu Staryu
R B Y
Super Rod Fishing
Super Rod
15 25%
Staryu Staryu
R B Y
Super Rod Fishing
Super Rod
30 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 II

Pokémon Games Location Levels Rate
Morning Day Night
Surfing
Tentacool Tentacool
G S C
Surfing Surfing
30-39 90%
Tentacruel Tentacruel
G S C
Surfing Surfing
35-39 10%
Fishing
Tentacool Tentacool
G S C
Old Rod Fishing
Old Rod
10 15%
Magikarp Magikarp
G S C
Old Rod Fishing
Old Rod
10 85%
Tentacool Tentacool
G S C
Good Rod Fishing
Good Rod
20 35%
Shellder Shellder
G S C
Good Rod Fishing
Good Rod
20 10%
Magikarp Magikarp
G S C
Good Rod Fishing
Good Rod
20 35%
Chinchou Chinchou
G S C
Good Rod Fishing
Good Rod
20 20%
Tentacruel Tentacruel
G S C
Super Rod Fishing
Super Rod
40 20%
Shellder Shellder
G S C
Super Rod Fishing
Super Rod
40 30%
Chinchou Chinchou
G S C
Super Rod Fishing
Super Rod
40 40%
Lanturn Lanturn
G S C
Super Rod Fishing
Super Rod
40 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.


Generation III

Pokémon Games Location Levels Rate
Surfing
Tentacool Tentacool
FR LG
Surfing Surfing
5-40 100%
Fishing
Magikarp Magikarp
FR LG
Old Rod Fishing
Old Rod
5 100%
Krabby Krabby
FR LG
Good Rod Fishing
Good Rod
5-15 20%
Krabby Krabby
FR LG
Good Rod Fishing
Good Rod
5-15 60%
Horsea Horsea
FR LG
Good Rod Fishing
Good Rod
5-15 60%
Horsea Horsea
FR LG
Good Rod Fishing
Good Rod
5-15 20%
Magikarp Magikarp
FR LG
Good Rod Fishing
Good Rod
5-15 20%
Psyduck Psyduck
FR LG
Super Rod Fishing
Super Rod
25-35 1%
Slowpoke Slowpoke
FR LG
Super Rod Fishing
Super Rod
25-35 1%
Krabby Krabby
FR LG
Super Rod Fishing
Super Rod
15-25 80%
Kingler Kingler
FR LG
Super Rod Fishing
Super Rod
25-35 4%
Horsea Horsea
FR LG
Super Rod Fishing
Super Rod
15-25 80%
Seadra Seadra
FR LG
Super Rod Fishing
Super Rod
25-35 4%
Gyarados Gyarados
FR LG
Super Rod Fishing
Super Rod
15-25 15%
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

Pokémon Games Location Levels Rate
Surfing
Tentacool Tentacool
HG SS
Surfing Surfing
30-35 90%
Tentacruel Tentacruel
HG SS
Surfing Surfing
35 10%
Fishing
Tentacool Tentacool
HG SS
Old Rod Fishing
Old Rod
10 15%
Magikarp Magikarp
HG SS
Old Rod Fishing
Old Rod
10 85%
Tentacool Tentacool
HG SS
Good Rod Fishing
Good Rod
20 30%
Shellder Shellder
HG SS
Good Rod Fishing
Good Rod
20 10%
Magikarp Magikarp
HG SS
Good Rod Fishing
Good Rod
20 40%
Chinchou Chinchou
HG SS
Good Rod Fishing
Good Rod
20 20%
Tentacruel Tentacruel
HG SS
Super Rod Fishing
Super Rod
40 20%
Shellder Shellder
HG SS
Super Rod Fishing
Super Rod
40 30%
Chinchou Chinchou
HG SS
Super Rod Fishing
Super Rod
40 40%
Lanturn Lanturn
HG SS
Super Rod Fishing
Super Rod
40 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.


Generation VII

Pokémon Games Location Levels Rate
Sea Skim
Tentacool Tentacool
P E
Sea Skim Sea Skim
37-42 45%
Tentacruel Tentacruel
P E
Sea Skim Sea Skim
37-42 5%
Magikarp Magikarp
P E
Sea Skim Sea Skim
37-42 45%
Gyarados Gyarados
P E
Sea Skim Sea Skim
37-42 5%
Rare Spawns
Lapras Lapras
P E
Sea Skim Sea Skim
37-42 -
While riding a Flying Pokémon
Pidgey Pidgey
P E
Midair Midair
3-56 60%
Pidgeotto Pidgeotto
P E
Midair Midair
3-56 35%
Pidgeot Pidgeot
P E
Midair Midair
3-56 5%
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 I

The following Trainers are listed from east to west.

Trainer Pokémon
East of the islands
Swimmer
Swimmer
Reward: $155
Shellder Shellder Lv.31
No item
Cloyster Cloyster Lv.31
No item
Swimmer
Swimmer
Reward: $140
Horsea Horsea Lv.28
No item
Horsea Horsea Lv.28
No item
Seadra Seadra Lv.28
No item
Horsea Horsea Lv.28
No item
Beauty
Beauty
Reward: $2100
Seadra Seadra Lv.30
No item
Horsea Horsea Lv.30
No item
Seadra Seadra Lv.30
No item
Beauty
Beauty
Reward: $2450
Seaking Seaking Lv.35
No item
West of the islands
Jr. Trainer♀
Jr. Trainer♀
Reward: $600
Tentacool Tentacool Lv.30
No item
Horsea Horsea Lv.30
No item
Seel Seel Lv.30
No item
Swimmer
Swimmer
Reward: $175
Staryu Staryu Lv.35
No item
Bird Keeper
Bird Keeper
Reward: $750
Fearow Fearow Lv.30
No item
Fearow Fearow Lv.30
No item
Pidgeotto Pidgeotto Lv.30
No item
Beauty
Beauty
Reward: $2100
Shellder Shellder Lv.30
No item
Shellder Shellder Lv.30
No item
Cloyster Cloyster Lv.30
No item
Jr. Trainer♀
Jr. Trainer♀
Reward: $620
Goldeen Goldeen Lv.31
No item
Seaking Seaking Lv.31
No item
Beauty
Beauty
Reward: $2170
Poliwag Poliwag Lv.31
No item
Seaking Seaking Lv.31
No item


Generation II

The following Trainers are listed from west to east.

Trainer Pokémon
Swimmer♂ Cameron
Swimmer♂ Cameron
カツヤ Katsuya
Reward: $272
Marill Marill Lv.34
No item
Swimmer♀ Lori
Swimmer♀ Lori
ケイ Kay
Reward: $640
Starmie Starmie Lv.32
No item
Starmie Starmie Lv.32
No item
Swimmer♀ Nicole
Swimmer♀ Nicole
クニミ Kunimi
Reward: $640
Marill Marill Lv.29
No item
Marill Marill Lv.29
No item
Lapras Lapras Lv.32
No item
Trainers with a telephone symbol by their names will give their Pokégear number to the player, and may call or be called for a rematch with higher-level Pokémon.


Generation III

The following Trainers are listed from east to west.

Trainer Pokémon
East of the islands
Swimmer♂ Barry
Swimmer♂ Barry
ガクジ Gakuji
Reward: $124
Shellder Shellder Lv.31
No item
Cloyster Cloyster Lv.31
No item
Swimmer♂ Darrin
Swimmer♂ Darrin
テルユキ Teruyuki
Reward: $112
Vs. Seeker
Horsea Horsea Lv.28
No item
Horsea Horsea Lv.28
No item
Horsea Horsea Lv.28
No item
Seadra Seadra Lv.28
No item
Swimmer♀ Shirley
Swimmer♀ Shirley
アサミ Asami
Reward: $120
Seadra Seadra Lv.30
No item
Horsea Horsea Lv.30
No item
Seadra Seadra Lv.30
No item
Swimmer♀ Tiffany
Swimmer♀ Tiffany
ハルコ Haruko
Reward: $140
Seaking Seaking Lv.35
No item
West of the islands
Picnicker Irene
Picnicker Irene
ミズキ Mizuki
Reward: $600
Tentacool Tentacool Lv.30
No item
Horsea Horsea Lv.30
No item
Seel Seel Lv.30
No item
Bird Keeper Roger
Bird Keeper Roger
トモヒコ Tomohiko
Reward: $720
Fearow Fearow Lv.30
No item
Fearow Fearow Lv.30
No item
Pidgeotto Pidgeotto Lv.30
No item
Swimmer♀ Nora
Swimmer♀ Nora
リリカ Ririka
Reward: $120
Shellder Shellder Lv.30
No item
Shellder Shellder Lv.30
No item
Cloyster Cloyster Lv.30
No item
Swimmer♂ Dean
Swimmer♂ Dean
レツジ Retsuji
Reward: $140
Staryu Staryu Lv.35
No item
Picnicker Missy
Picnicker Missy
クミコ Kumiko
Reward: $620
Vs. Seeker
Goldeen Goldeen Lv.31
No item
Seaking Seaking Lv.31
No item
Swimmer♀ Melissa
Swimmer♀ Melissa
メグミ Megumi
Reward: $124
Vs. Seeker
Poliwag Poliwag Lv.31
No item
Seaking Seaking Lv.31
No item
Rematch
Swimmer♂ Darrin
Swimmer♂ Darrin
テルユキ Teruyuki
Reward: $208
After delivering the Sapphire to Celio
Vs. Seeker
Seadra Seadra Lv.52
No item
Seadra Seadra Lv.52
No item
Seadra Seadra Lv.52
No item
Seadra Seadra Lv.52
No item
Picnicker Missy
Picnicker Missy
クミコ Kumiko
Reward: $700
After becoming Champion
Vs. Seeker
Seaking Seaking Lv.49
No item
Seaking Seaking Lv.49
No item
Picnicker Missy
Picnicker Missy
クミコ Kumiko
Reward: $1080
After delivering the Sapphire to Celio
and defeating the previous team

Vs. Seeker
Seaking Seaking Lv.54
No item
Seaking Seaking Lv.54
No item
Swimmer♀ Melissa
Swimmer♀ Melissa
メグミ Megumi
Reward: $196
After becoming Champion
Vs. Seeker
Poliwhirl Poliwhirl Lv.49
No item
Seaking Seaking Lv.49
No item
Trainers with a Vs. Seeker by their names, when alerted for a rematch using the item, may use higher-level Pokémon.


Generation IV

The following Trainers are listed from west to east.

Trainer Pokémon
West of the islands
Swimmer Frankie
Swimmer Frankie
カツヤ Katsuya
Reward: $704
Azumarill Azumarill Lv.44
No item
Bird Keeper Bert
Bird Keeper Bert
マスミツ Masumitsu
Reward: $1376
Wingull Wingull Lv.46
No item
Fearow Fearow Lv.43
No item
Swimmer Mina
Swimmer Mina
チグミ Chigumi
Reward: $656
Luvdisc Luvdisc Lv.38
No item
Luvdisc Luvdisc Lv.39
No item
Luvdisc Luvdisc Lv.41
No item
Picnicker Cheyenne
Picnicker Cheyenne
アサミ Asami
Reward: $720
Shinx Shinx Lv.45
No item
Bird Keeper Ernie
Bird Keeper Ernie
ヤジロウ Yajirō
Reward: $1536
Starly Starly Lv.48
No item
Swimmer Leona
Swimmer Leona
リオナ Leona
Reward: $704
Bidoof Bidoof Lv.44
No item
Picnicker Adrian
Picnicker Adrian
ナナカ Nanaka
Reward: $720
Shroomish Shroomish Lv.45
No item
East of the islands
Swimmer Luis
Swimmer Luis
トシミツ Toshimitsu
Reward: $672
Seadra Seadra Lv.46
No item
Quagsire Quagsire Lv.42
No item
Camper Pedro
Camper Pedro
シンヤ Shin'ya
Reward: $720
Linoone Linoone Lv.45
Bag Sitrus Berry Sprite.png Sitrus Berry
Swimmer Elmo
Swimmer Elmo
シブキ Shibuki
Reward: $672
Poliwhirl Poliwhirl Lv.46
No item
Tentacruel Tentacruel Lv.42
No item
Swimmer Lori
Swimmer Lori
ケイ Kay
Reward: $672
Starmie Starmie Lv.42
No item
Starmie Starmie Lv.42
No item
Starmie Starmie Lv.42
No item
Swimmer Nicole
Swimmer Nicole
クニミ Kunimi
Reward: $672
Marill Marill Lv.39
No item
Marill Marill Lv.39
No item
Lapras Lapras Lv.42
No item
Trainers with a telephone symbol by their names will give their Pokégear number to the player, and may call or be called for a rematch with higher-level Pokémon.


Generation VII

The following Trainers are listed from east to west.

Trainer Pokémon
East of the islands
Swimmer Douglas
Swimmer Douglas
タツオ Tatsuo
Reward: $820
3 Poké Balls
Gyarados Gyarados Lv.42
No item
Swimmer Darrin
Swimmer Darrin
テルユキ Teruyuki
Reward: $880
3 Poké Balls
Golduck Golduck Lv.44
No item
Gyarados Gyarados Lv.44
No item
Beauty Shirley
Beauty Shirley
アサミ Asami
Reward: $820
3 Poké Balls
Wartortle Wartortle Lv.41
No item
Starmie Starmie Lv.41
No item
West of the islands
Picnicker Irene
Picnicker Irene
ミズキ Mizuki
Reward: $860
2 Great Balls
Marowak Marowak Lv.43
No item
Gloom Gloom Lv.43
No item
Wigglytuff Wigglytuff Lv.43
No item
Beauty Hansol
Beauty Hansol
ナツミ Natsumi
Reward: $860
3 Poké Balls
Slowbro Slowbro Lv.43
No item
Bird Keeper Roger
Bird Keeper Roger
トモヒコ Tomohiko
Reward: $2,700
3 Poké Balls
Fearow Fearow Lv.45
No item
Dodrio Dodrio Lv.45
No item
Pidgeot Pidgeot Lv.45
No item
Swimmer Dean
Swimmer Dean
レツジ Retsuji
Reward: $880
3 Poké Balls
Starmie Starmie Lv.44
No item
Tentacruel Tentacruel Lv.44
No item
Kingler Kingler Lv.44
No item
Picnicker Missy
Picnicker Missy
クミコ Kumiko
Reward: $820
2 Great Balls
Jolteon Jolteon Lv.41
No item
Beauty Nora
Beauty Nora
リリカ Ririka
Reward: $820
3 Poké Balls
Cloyster Cloyster Lv.41
No item
Beauty Melissa
Beauty Melissa
メグミ Megumi
Reward: $860
3 Poké Balls
Seaking Seaking Lv.43
No item
Jynx Jynx Lv.43
No item
Ace Trainer Marty
Ace Trainer Marty
ショウ Shō
Reward: $4,600
5 Ultra Balls
Golem Golem Lv.45
No item
Pinsir Pinsir Lv.46
No item


Post-game

Trainer Pokémon
East of the islands
Master Trainer
Beauty Tessa
Beauty Tessa
ハルナ Haruna
Blastoise Blastoise Lv.80
Fake Out Rock Slide
Dark Pulse Substitute
Master Trainer
Scientist Francis
Scientist Francis
トクマ Tokuma
Tentacool Tentacool Lv.75
Barrier Headbutt
Hydro Pump -
West of the islands
Master Trainer
Beauty Rose
Beauty Rose
ミレイ Mirei
Cloyster Cloyster Lv.75
Barrier Toxic
Protect Rest
Master Trainer
Beauty Prita
Beauty Prita
ミナミ Minami
Wartortle Wartortle Lv.75
Headbutt Rock Slide
Skull Bash -
Master Trainer
Scientist Melvin
Scientist Melvin
フミヒト Fumihito
Tentacruel Tentacruel Lv.80
Wrap Screech
Barrier Headbutt


Differences among generations

Generation I

In the first appearance of this route, the rock boundaries follow a strict path. Rocks blocking the way, forcing people to travel through the Seafoam Islands. There are two signposts numbering the islands, one outside each cave. There is also a wooden pier-like island in the west section.

Generation II

The route is shortened by nearly 30%. The west island doesn't have an entrance, and the cave of the east one is now Blaine's gym. Due to this, the rocks blocking the water path are removed, and there is just one signpost, indicating the Gym and the Gym Leader.

Generation III

In Generation III, the rock formations are not straight, making the route seem more natural. The Seafoam Islands are remodeled and made bigger. The characteristics of the Seafoam Islands are essentially that of Generation I. The west island is now a tiny sandbar, and three other sandbars are added near the original.

Generation IV

In this generation, the route is very similar to its appearance in Generation III. Unlike Generation II, the path is blocked again and the player is forced to travel through the cave, but the Cinnabar Gym is still in the east cave. Now one signpost indicates the landmark's name, and the other has the Gym information. The four tiny islands in the west are now merged into one large sandbar in the southwest section, with some Trainers on it. Several rocks are now present in the middle of the route.

In the manga

Pokémon Adventures

Red, Green & Blue arc

Route 20 made a brief appearance in the beginning of Holy Moltres, where Red was seen arriving at Cinnabar Island on his Gyarados after having visited the Seafoam Islands.

See also


Kanto
Boulder Badge.png Cascade Badge.png Thunder Badge.png Rainbow Badge.png Soul Badge.png Marsh Badge.png Volcano Badge.png Earth Badge.png
Settlements
Pallet TownViridian CityPewter CityCerulean CityVermilion CityLavender Town
Celadon CitySaffron CityFuchsia CityCinnabar IslandIndigo Plateau
Routes
12345678910111213141516171819202122232425262728
Landmarks
Professor Oak's LaboratoryViridian ForestDiglett's CavePewter Museum of ScienceMt. Moon (Square) • Cerulean Cave
Underground Path (Kanto Routes 5–6)Underground Path (Kanto Routes 7–8)S.S. AnneS.S. AquaSea CottageRock Tunnel
Power PlantCycling Road/Pokémon RoadTeam Rocket HideoutSilph Co.Magnet TrainPokémon TowerSafari Zone/Pal Park
GO ParkSeafoam IslandsPokémon MansionCinnabar LabPokémon League Reception GateVictory RoadTohjo Falls
Access to
Sevii IslandsJohto


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