The Great Marsh (Japanese: だいしつげん) is an area located in Pastoria City. It contains some Pokémon that can not be found anywhere else in Sinnoh. It seems to be the Sinnoh region's counterpart to Kanto and Hoenn's Safari Zones and Johto's National Park. It is also the only Safari Zone to feature a train ride, which can only go one straight direction, whilst journeying through the six areas of the Great Marsh.

The Great Marsh has also a new cool spin in looking for wild Pokémon. The counted-steps mechanic is now featured with a brand new twist; players could get stuck on muddy grass (a first in Diamond and Pearl) if he/she moves too slowly or passes through mud-tiles with no grass at all, therefore leading the player to get himself/herself out. Every attempt of the player to get himself/herself out counts as a deduction to the given step-count.

Wild Pokémon

"Muddy" Grass

Morning

• Psyduck 8%
• Marill 15%
• Wooper 20%
• Quagsire 15%
• Azurill 1%
• Starly 10%
• Bidoof 1%
• Bibarel 20%
• Budew 10%

Afternoon

• Psyduck 8%
• Marill 15%
• Wooper 20%
• Quagsire 15%
• Azurill 1%
• Starly 10%
• Bidoof 1%
• Bibarel 20%
• Budew 10%

Evening

• Psyduck 8%
• Hoothoot 10%
• Noctowl 10%
• Marill 15%
• Wooper 20%
• Quagsire 15%
• Azurill 1%
• Bidoof 1%
• Bibarel 20%

Water

Surf

• Psyduck
• Marill
• Wooper
• Quagsire

Rod

• Magikarp Old Rod 100%, Good Rod 65%
• Gyarados Good Rod 5%, Super Rod 5%
• Carvanha Super Rod 35%
• Barboach Good Rod 30%
• Whiscash Super Rod 65%

Changing pokémon

These pokémon will not always appear in the Marsh. To get different pokémon to appear, you must wait for the day to change. These pokémon appear randomly, so you may not see a pokémon on this list for a week or longer, or you might see them multiple days in a row.

This list is not yet complete.

• Carnivine
• Croagunk
• Kangaskhan
• Paras
• Shroomish
• Skorupi
• Toxicroak
• Yanma

GBA Cartridge Insertion

• Arbok (FireRed Version)

Sinnoh
Settlements Twinleaf Town • Sandgem Town • Jubilife City • Oreburgh City • Floaroma Town • Eterna City • Hearthome City Solaceon Town • Veilstone City • Pastoria City • Celestic Town • Canalave City • Snowpoint City • Sunyshore City Pokémon League • Fight Area • Survival Area • Resort Area Routes 201 • 202 • 203 • 204 • 205 • 206 • 207 • 208 • 209 • 210 • 211 • 212 • 213 • 214 • 215 216 • 217 • 218 • 219 • 220 • 221 • 222 • 223 • 224 • 225 • 226 • 227 • 228 • 229 • 230 Landmarks Lake Verity (Lakefront) • Oreburgh Gate • Oreburgh Mine • Oreburgh Mining Museum • Global Terminal/Global Wonder Station Ravaged Path • Floaroma Meadow • Valley Windworks • Eterna Forest • Old Chateau • Underground/Grand Underground Wayward Cave • Mount Coronet • Amity Square • Lost Tower • Hallowed Tower • Solaceon Ruins • Maniac Tunnel • Lake Valor (Lakefront) Great Marsh • Pokémon Mansion • Trophy Garden • Fuego Ironworks • Iron Island • Lake Acuity (Lakefront) • Spear Pillar • Victory Road Pal Park/Ramanas Park • Contest Hall • Battle Zone • Battle Park • Battle Tower/Battle Frontier • Stark Mountain • Snowpoint Temple Spring Path • Sendoff Spring • Turnback Cave • Fullmoon Island • Newmoon Island • Seabreak Path • Flower Paradise • Hall of Origin Access to Distortion World See also Hisui