Route 20 FireRed & LeafGreen · Route
Route 20 is a stretch of sea between Fuchsia City and Cinnabar Island with the Seafoam Islands in the middle. Rocks split the route, so you cross it by passing through the Seafoam Islands cave while surfing.
- Wild Pokémon
- 9
- Items
- 1
- Trainers
- 10
- Needs
- Surf
Connects to: Cinnabar Island · Route 19 · Seafoam Islands
Route 20 on the Kanto map
Wild Pokémon
| Pokémon | Type | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
 Tentacool | WaterPoison | 5–40 | 100% | 100% |
| Rod | Pokémon | Lv. | FireRed | LeafGreen |
|---|---|---|---|---|
| Old Rod |  Magikarp | 5 | 100% | 100% |
| Good Rod |  Krabby | 5–15 | 20% | 60% |
 Horsea | 5–15 | 60% | 20% | |
| Magikarp | 5–15 | 20% | 20% | |
| Super Rod | Krabby | 15–25 | – | 80% |
| Horsea | 15–25 | 80% | – | |
 Gyarados | 15–25 | 15% | 15% | |
 Kingler | 25–35 | – | 4% | |
 Seadra | 25–35 | 4% | – | |
 Psyduck | 25–35 | 1% | – | |
 Slowpoke | 25–35 | – | 1% |
Chances are the game’s encounter slots for each version (grass 20/20/10/10/10/10/5/5/4/4/1/1, surfing and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, Super Rod 40/40/15/4/1). A dash means the Pokémon does not appear in that version here. Version exclusives · Where to find every Pokémon.
Trainers
| Trainer | Pokémon | Prize |
|---|---|---|
 Swimmer♀Melissa |  Poliwag 31 Seaking 31 | ₽124 |
 PicnickerMissy |  Goldeen 31Seaking 31 | ₽620 |
| Swimmer♀Nora |  Shellder 30Shellder 30 Cloyster 30 | ₽120 |
 Bird KeeperRoger |  Fearow 30Fearow 30 Pidgeotto 30 | ₽720 |
 Swimmer♂Dean |  Staryu 35 | ₽140 |
| PicnickerIrene | Tentacool 30Horsea 30 Seel 30 | ₽600 |
| Swimmer♂Barry | Shellder 31Cloyster 31 | ₽124 |
| Swimmer♂Darrin | Horsea 28Horsea 28Seadra 28Horsea 28 | ₽112 |
| Swimmer♀Shirley | Seadra 30Horsea 30Seadra 30 | ₽120 |
| Swimmer♀Tiffany | Seaking 35 | ₽140 |
Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s base rate (doubled in double battles). Use the VS Seeker to rematch trainers.
Items
| Item | How |
|---|---|
| Stardust | Hidden |
Hidden items sparkle with the Itemfinder.
Tips
- Only Surf encounters and fishing exist here, with no tall grass.
- The Super Rod gives Horsea (and rarely Seadra) in FireRed, and Krabby (and rarely Kingler) in LeafGreen.
- Swimmers, Picnickers and a Bird Keeper stand on the water and islands, so keep Potions handy.
- Seafoam Islands is the cave entrance on this route; it is also where Articuno is found.
- A hidden Stardust is on the route for Itemfinder users.
Walkthrough: Part 11: Cinnabar Island and Blaine
FAQ
How do I get from Route 19 to Cinnabar Island?
Surf along Route 20 and travel through the Seafoam Islands cave, since rocks block a direct way across.
Which Pokémon are version exclusive when fishing on Route 20?
Horsea and Seadra in FireRed; Krabby and Kingler in LeafGreen.
Where is the Seafoam Islands?
In the middle of Route 20.
What Pokémon can you catch in Route 20 in FireRed and LeafGreen?
9 species: Tentacool, Magikarp, Krabby, Horsea, Gyarados, Kingler, Seadra, Psyduck, Slowpoke. FireRed only: Horsea, Seadra, Psyduck. LeafGreen only: Krabby, Kingler, Slowpoke.
Sources & picture credits
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances for both versions, items, trainers, gifts, trades and shops come from the pret/pokefirered decompilation (pret/pokefirered 037335f4c7). Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives; the region maps are drawn from the game’s own map graphics (listed on the image gallery).