Pokémon FireRed and LeafGreen/Route 20

This route is confusingly divided by the Seafoam Islands in the center. If you're taking them on, beware that another one of the Legendary Birds resides there, as the game already hints you, if you've been looking at everything. Route 20 continues the connection between Fuchsia City and Cinnabar Island, although blocked in the middle by the islands.

Route 20

Only Tentacool are found by surfing, so use repels on these waters not to be annoyed by the persistent repetitive encounters.

Pokémon found

FireRed and LeafGreen
Pokémon		Level	Rate
Surfing
	Tentacool	5-40	100%

FireRed
Pokémon		Level	Old Rod	Good Rod	Super Rod
	Magikarp	5	100%	-	-
	Krabby	5-15	-	20%	-
	Horsea	5-15	-	60%	-
	Magikarp	5-15	-	20%	-
	Psyduck	25-35	-	-	1%
	Horsea	15-25	-	-	80%
	Seadra	25-35	-	-	4%
	Gyarados	15-25	-	-	15%

LeafGreen
Pokémon		Level	Old Rod	Good Rod	Super Rod
	Magikarp	5	100%	-	-
	Krabby	5-15	-	60%	-
	Horsea	5-15	-	20%	-
	Magikarp	5-15	-	20%	-
	Slowpoke	25-35	-	-	1%
	Krabby	15-25	-	-	80%
	Kingler	25-35	-	-	4%
	Gyarados	15-25	-	-	15%

Trainers

East Side

FireRed and LeafGreen
Trainer	Pokemon
Swimmer♂ Barry Reward: 124	Shellder Lv. 31 Cloyster Lv. 31
Swimmer♂ Darrin Reward: 112 Rematch	Horsea Lv. 28 Horsea Lv. 28 Seadra Lv. 28 Horsea Lv. 28
Swimmer♀ Shirley Reward: 120	Seadra Lv. 30 Horsea Lv. 30 Seadra Lv. 30
Swimmer♀ Tiffany Reward: 140	Seaking Lv. 35

West Side

FireRed and LeafGreen
Trainer	Pokemon
Picnicker Irene Reward: 600	Tentacool Lv. 30 Horsea Lv. 30 Seel Lv. 30
Bird Keeper Roger Reward: 720	Fearow Lv. 30 Fearow Lv. 30 Pidgeotto Lv. 30
Swimmer♀ Nora Reward: 120	Shellder Lv. 30 Shellder Lv. 30 Cloyster Lv. 30
Swimmer♂ Dean Reward: 140	Staryu Lv. 35
Picnicker Missy Reward: 620 Rematch	Goldeen Lv. 31 Seaking Lv. 31
Swimmer♀ Melissa Reward: 124 Rematch	Poliwag Lv. 31 Seaking Lv. 31

Items

• Stardust (Hidden in the middle of a northern desert island, north of moving swimmer Dean)