Johto field journalPokémon HeartGold / SoulSilverGUIDES

Route 21 HGSS · Kanto Route

Route 21 on the Kanto map
Route 21 on the Kanto Pokégear map

Route 21 is the sea route running south from Pallet Town to Cinnabar Island. Just south of Pallet a strip of land holds a patch of tall grass, after which the route opens into wide water patrolled by Swimmers, Fishermen and Bird Keepers. You need Surf to travel it.

Region
Kanto
Wild Pokémon
12
Items
3
Trainers
12
HMs
Surf

Connects to: Cinnabar Island · Pallet Town

Wild Pokémon

Tall grass encounter rate 20
PokémonTypeLv.MorningDayNight
TangelaGrass20–3595%90%95%
Mr. MimePsychic28–305%10%5%
Hoenn SoundLinoone 20%, Lv. 35 Whismur 20%, Lv. 25–30Play the Hoenn Sound radio channel (after the National Pokédex): replaces four 10% grass slots.
Sinnoh SoundBidoof 20%, Lv. 35 Buizel 20%, Lv. 25–30Play the Sinnoh Sound radio channel (after the National Pokédex): replaces four 10% grass slots.
Surfing encounter rate 10
PokémonTypeLv.Chance
TentacoolWaterPoison30–3590%
TentacruelWaterPoison3510%
Fishing
RodPokémonLv.Chance
Old RodMagikarp1085%
Tentacool1015%
Good RodMagikarp2040%
Tentacool2030%
Chinchou2020%
Shellder2010%
Super RodChinchou4040%
Shellder4030%
Tentacruel4020%
Lanturn4010%
Headbutt: common trees 3 trees
PokémonTypeLv.Chance
HoothootNormalFlying24–2650%
SpinarakHGBugPoison24–2630%
WurmpleBug24–2620%
LedybaSSBugFlying24–2630%
Headbutt: rare trees
PokémonTypeLv.Chance
HoothootNormalFlying27–3065%
WurmpleBug27–3020%
TangelaGrass27–3015%

Use Headbutt on a tree (taught by the tutor in Ilex Forest). Which trees are “common”, “rare” or empty depends on the last digit of your Trainer ID.

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

TrainerPokémonPrize
FishermanArnoldShellderShellder 44₽1,408
FishermanMurphyCorsolaCorsola 32CorsolaCorsola 34CorsolaCorsola 36CorsolaCorsola 38₽1,216
FishermanLiamSeadraSeadra 42₽1,344
FishermanGideonLanturnLanturn 44MantineMantine 40₽1,280
SwimmerNikkiSeelSeel 37DewgongDewgong 42₽672
SwimmerChelanAzumarillAzumarill 40₽640
SwimmerKendraSlowkingSlowking 43₽688
SwimmerTysonQuagsireQuagsire 42OctilleryOctillery 42₽672
SwimmerEstebanGolduckGolduck 38PoliwhirlPoliwhirl 38₽608
SwimmerDuaneSeakingSeaking 40KabutopsKabutops 40₽640
Bird KeeperEastonDoduoDoduo 35DoduoDoduo 35DodrioDodrio 35DodrioDodrio 36₽1,152
Bird KeeperKinsleyFarfetch’dFarfetch’d 36FearowFearow 36PidgeottoPidgeotto 37₽1,184

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

ItemHow
StardustHidden
StardustHidden
StardustHidden

Hidden items can be found with the Dowsing MCHN Pokégear app.

Tips

  • The tall grass near Pallet Town is almost all Tangela, with Mr. Mime at 5–10% (10% during the day).
  • Three Stardust are hidden on sandbars: one near Pallet Town and two on the trainer-free sandbar in the middle of the route.
  • The Super Rod fishes up Chinchou, Shellder, Tentacruel and Lanturn.
  • Fisherman Murphy uses four Corsola, from Lv32 to Lv38.
  • Electric and Grass moves cover most of the Water types here, but watch for Bird Keepers with Dodrio and Fearow.

Walkthrough: Part 21: Mt. Moon, Cinnabar Island and Blaine

FAQ

Where do you catch Mr. Mime in HeartGold and SoulSilver?

In the tall grass on Route 21 just south of Pallet Town; it is most common during the day at 10%.

How do you get to Cinnabar Island in HGSS?

Surf south from Pallet Town along Route 21, or come from the Seafoam Islands side via Route 20.

Where can you find Stardust on Route 21?

Three are hidden on sandbars; one near Pallet Town and two on the empty sandbar in the middle of the route.

What Pokémon can you catch in Route 21 in HeartGold and SoulSilver?

12 species: Tangela, Mr. Mime, Tentacool, Tentacruel, Magikarp, Chinchou, Shellder, Lanturn, Hoothoot, Spinarak, Wurmple, Ledyba.

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).