Sea Route 20 — Pokémon Yellow

Every wild Pokémon here, by encounter method.

Sea Route 20 lists 6 Pokémon across 4 encounter methods (surf, old rod, good rod, super rod), between level 5 and 40.

Sea Route 20 in the official games

The original game's table for this area:

Surf Lv 5-40

Tentacool100%

Old Rod Lv 5

Magikarp100%

Good Rod Lv 10

Goldeen50%Poliwag50%

Super Rod Lv 20-40

Tentacool40% · Lv 20Tentacruel40%Staryu20% · Lv 30

Open in the interactive guide