Great Marsh Platinum · Area

Wild Pokémon

1, 2

Tall grass encounter rate 35

Pokémon	Type	Lv.	Morning	Day	Night
Wooper	WaterGround	28–30	40%	40%	40%
Bibarel	NormalWater	28	20%	20%	20%
Tropius	GrassFlying	28–30	20%	20%	–
Quagsire	WaterGround	30	10%	10%	10%
Noctowl	NormalFlying	28–30	–	–	20%
Tangela	Grass	30–31	5%	5%	5%
Yanma	BugFlying	30–31	5%	5%	5%

Poké RadarWooper 10% Quagsire 10% Tangela 1% Yanma 1%Only in shaking grass while using the Poké Radar (after the National Pokédex).

Game Boy Advance game in slot 2FireRed: Arbok 8%With the National Pokédex and that GBA game inserted, these replace two 4% grass slots.

Surfing encounter rate 10

Pokémon	Type	Lv.	Chance
Wooper	WaterGround	20–30	90%
Quagsire	WaterGround	20–40	10%

Fishing

Rod	Pokémon	Lv.	Chance
Old Rod	Magikarp	3–15	100%
Good Rod	Magikarp	10–25	55%
	Barboach	10–25	45%
Super Rod	Carvanha	30–55	45%
	Gyarados	30–55	40%
	Whiscash	20–50	15%

3, 4

Tall grass encounter rate 35

Pokémon	Type	Lv.	Morning	Day	Night
Wooper	WaterGround	27–29	30%	30%	30%
Bibarel	NormalWater	27–28	30%	30%	20%
Tangela	Grass	27–30	25%	25%	15%
Quagsire	WaterGround	29	10%	10%	10%
Yanma	BugFlying	29–30	5%	5%	5%
Hoothoot	NormalFlying	27	–	–	10%
Noctowl	NormalFlying	28	–	–	10%

Poké RadarTangela 11% Quagsire 10% Yanma 1%Only in shaking grass while using the Poké Radar (after the National Pokédex).

Game Boy Advance game in slot 2FireRed: Arbok 8%With the National Pokédex and that GBA game inserted, these replace two 4% grass slots.

Surfing encounter rate 10

Pokémon	Type	Lv.	Chance
Wooper	WaterGround	20–30	90%
Quagsire	WaterGround	20–40	10%

Fishing

Rod	Pokémon	Lv.	Chance
Old Rod	Magikarp	3–15	100%
Good Rod	Magikarp	10–25	55%
	Barboach	10–25	45%
Super Rod	Carvanha	30–55	45%
	Gyarados	30–55	40%
	Whiscash	20–50	15%

5, 6

Tall grass encounter rate 35

Pokémon	Type	Lv.	Morning	Day	Night
Wooper	WaterGround	26–28	30%	30%	30%
Bibarel	NormalWater	26–27	30%	30%	20%
Yanma	BugFlying	26–29	25%	25%	15%
Quagsire	WaterGround	28	10%	10%	10%
Hoothoot	NormalFlying	26–27	–	–	20%
Tangela	Grass	28–29	5%	5%	5%

Poké RadarYanma 11% Quagsire 10% Tangela 1%Only in shaking grass while using the Poké Radar (after the National Pokédex).

Game Boy Advance game in slot 2FireRed: Arbok 8%With the National Pokédex and that GBA game inserted, these replace two 4% grass slots.

Surfing encounter rate 10

Pokémon	Type	Lv.	Chance
Wooper	WaterGround	20–30	90%
Quagsire	WaterGround	20–40	10%

Fishing

Rod	Pokémon	Lv.	Chance
Old Rod	Magikarp	3–15	100%
Good Rod	Magikarp	10–25	55%
	Barboach	10–25	45%
Super Rod	Carvanha	30–55	45%
	Gyarados	30–55	40%
	Whiscash	20–50	15%

Chances are the game’s encounter slots: grass and caves 20/20/10/10/10/10/5/5/4/4/1/1, with the two 10% slots changing by time of day (morning 4:00–9:59, day 10:00–19:59, night 20:00–3:59); surfing and the Old Rod 60/30/5/4/1, the Good and Super Rods 40/40/15/4/1. Where to find every Pokémon.

Daily Pokémon in the Great Marsh

Each area of the Great Marsh gets one extra Pokémon every day in two 5% grass slots (10%). Look through the binoculars on the observation deck to see today’s Pokémon. Before the National Pokédex the daily Pokémon come from the first list; after it, the second list is added.

Before the National Pokédex: Wooper Carnivine Skorupi Croagunk Quagsire Yanma Tropius Tangela

Added after it: Toxicroak Kecleon Drapion Kangaskhan Paras Exeggcute Shroomish Gulpin

Items

Hidden items show up on the Dowsing Machine Pokétch app.

Tips

• Tropius appears in areas 1 and 2 at 20% in the morning and day, and Yanma is common in areas 5 and 6 (25%).
• Each area gets one extra rare Pokémon every day, filling two 5% grass slots (10% total); check today's line-up through the ₽100 binoculars in the observatory.
• Catch five or more Pokémon in one Safari Game and the Cowgirl at the entrance gives you the Matchup Checker Pokétch app.
• Throwing mud makes Pokémon harder to catch but less likely to flee, while food does the opposite.
• Carvanha (45%) bites on the Super Rod, and the Toxic Plate is hidden in area 2.
• Turning while stuck in the deep bog can flush out a wild Pokémon.