Route 20 HGSS · Kanto Route
Route 20 is the sea route between Route 19, south of Fuchsia City, and Cinnabar Island, with the Seafoam Islands in the middle. A rock barrier forces you to cut through the Seafoam caves to cross. Blaine’s Cinnabar Gym has moved into a Seafoam cave since the volcano on Cinnabar Island erupted.
- Region
- Kanto
- Wild Pokémon
- 6
- Items
- 3
- Trainers
- 12
- HMs
- Surf
Connects to: Route 19 · Seafoam Islands · Cinnabar Island
Wild Pokémon
| Pokémon | Type | Lv. | Chance |
|---|---|---|---|
 Tentacool | WaterPoison | 30–35 | 90% |
 Tentacruel | WaterPoison | 35 | 10% |
| Rod | Pokémon | Lv. | Chance |
|---|---|---|---|
| Old Rod |  Magikarp | 10 | 85% |
| Tentacool | 10 | 15% | |
| Good Rod | Magikarp | 20 | 40% |
| Tentacool | 20 | 30% | |
 Chinchou | 20 | 20% | |
 Shellder | 20 | 10% | |
| Super Rod | Chinchou | 40 | 40% |
| Shellder | 40 | 30% | |
| Tentacruel | 40 | 20% | |
 Lanturn | 40 | 10% |
Chances are the game’s encounter slots: grass and caves 20/20/10/10/10/10/5/5/4/4/1/1, with every slot changing by time of day (morning 4:00–9:59, day 10:00–19:59, night 20:00–3:59); surfing 60/30/5/4/1; all three rods 40/30/15/10/5; Rock Smash 80/20; Headbutt 50/15/15/10/5/5. HG and SS mark Pokémon found in only one version. Where to find every Pokémon.
Trainers
| Trainer | Pokémon | Prize |
|---|---|---|
| SwimmerFrankie |  Azumarill 44 | ₽704 |
| CamperPedro |  Linoone 45 | ₽720 |
| PicnickerAdrian |  Shroomish 45 | ₽720 |
| PicnickerCheyenne |  Shinx 45 | ₽720 |
 Bird KeeperBert |  Wingull 46 Fearow 43 | ₽1,376 |
| Bird KeeperErnie |  Starly 48 | ₽1,536 |
 SwimmerNicole |  Marill 39Marill 39 Lapras 42 | ₽672 |
| SwimmerLori |  Starmie 42Starmie 42Starmie 42 | ₽672 |
| SwimmerElmo |  Poliwhirl 46Tentacruel 42 | ₽672 |
| SwimmerLuis |  Seadra 46 Quagsire 42 | ₽672 |
| SwimmerLeona |  Bidoof 44 | ₽704 |
| SwimmerMina |  Luvdisc 38Luvdisc 39Luvdisc 41 | ₽656 |
Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s rate (doubled in double battles). Trainers who give you their Pokégear number call when they want a rematch, with stronger teams as you progress.
Items
| Item | How |
|---|---|
| Stardust | Hidden |
| DeepSeaScale | Hidden |
| DeepSeaTooth | Hidden |
Hidden items can be found with the Dowsing MCHN Pokégear app.
Tips
- You must Surf the whole route, and the barrier in the middle means passing through the Seafoam Islands caves.
- Swimmers, Bird Keepers, a Camper and two Picnickers line the route with Pokémon in the Lv38–48 range.
- A DeepSeaTooth is hidden next to the entrance of Blaine’s Gym, and a DeepSeaScale is hidden north of the Seafoam Islands near Swimmer Luis.
- A Stardust is hidden on the long sandbar on the Cinnabar side.
- The Super Rod catches Chinchou 40%, Shellder 30%, Tentacruel 20% and Lanturn 10%.
Walkthrough: Part 21: Mt. Moon, Cinnabar Island and Blaine
FAQ
Where is the Cinnabar Gym in HeartGold and SoulSilver?
Blaine moved his Gym into a cave in the Seafoam Islands on Route 20 after the volcano on Cinnabar Island erupted.
Where is the DeepSeaTooth in HeartGold?
It is hidden right next to the entrance of Blaine’s Gym on Route 20; the DeepSeaScale is hidden north of the Seafoam Islands.
How do you get from Fuchsia to Cinnabar Island?
Surf south on Route 19 and west across Route 20, passing through the Seafoam Islands caves.
What Pokémon can you catch in Route 20 in HeartGold and SoulSilver?
6 species: Tentacool, Tentacruel, Magikarp, Chinchou, Shellder, Lanturn.
Sources & picture credits
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances, items, trainers, rematch teams, gifts and shops come from the pret/pokeheartgold decompilation, and the Pokémon sprites and dungeon entrance pictures are drawn from the game’s own graphics in it. The position maps are the Gold/Silver wiki’s Pokégear map renders. Location pictures and trainer sprites © Nintendo / Creatures / GAME FREAK, archived from the Pokémon Wiki on Fandom (listed on the image gallery).