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Pokémon: Let's Go, Pikachu! & Let's Go, Eevee!

Route 21

By
Vincent Lau

Time to return to the mainland!

Wild Pokémon

Pokémon Type Location Chance (%)
"Vileplume" IconVileplume Grass/Poison Tall grass 1 (Let’s Go "Pikachu" IconPikachu)
"Victreebel" IconVictreebel Grass/Poison Tall grass 1 (Let’s Go "Eevee" IconEevee)
"Gloom" IconGloom Grass/Poison Tall grass 14 (Let’s Go "Pikachu" IconPikachu)
"Weepinbell" IconWeepinbell Grass/Poison Tall grass 14 (Let’s Go "Eevee" IconEevee)
"Oddish" IconOddish Grass/Poison Tall grass 10 (Let’s Go "Pikachu" IconPikachu)
"Bellsprout" IconBellsprout Grass/Poison Tall grass 10 (Let’s Go "Eevee" IconEevee)
"Tangela" IconTangela Grass Tall grass 15
"Pidgeotto" IconPidgeotto Normal/Flying Tall grass 20
"Pidgey" IconPidgey Normal/Flying Tall grass 10
"Raticate" IconRaticate Normal Tall grass 20
"Rattata" IconRattata Normal Tall grass 10
"Chansey" IconChansey Normal Tall grass Rare spawn
"Starmie" IconStarmie Water/Psychic Water’s surface 1
"Tentacruel" IconTentacruel Water/Poison Water’s surface 9
"Staryu" IconStaryu Water Water’s surface 30
"Tentacool" IconTentacool Water/Poison Water’s surface 30
"Magikarp" IconMagikarp Water Water’s surface 30

This sea route connects Cinnabar Island with Pallet Town. It’s actually the quickest way to reach Cinnabar Island as well–and we make use of this route when looking for a Dark-type Pokémon to fight Sabrina with. Anyway, if you want to explore this route in full, we recommend starting from the Cinnabar Island side. Otherwise, you’ll have to follow this guide backwards.

When you enter this route, use Sea Skim from the edge of the pier. Just up ahead, there’s an island towards the left and a trainer nearby to its north-east. Jump on the island and reclaim the PP Up. Then head north past the trainer. If you want, you can go around him or wait till he’s looking away.

Swimmer Jerome

Pokémon Level Type
"Slowbro" IconSlowbro 42 Water/Psychic

An evolved "Slowpoke" IconSlowpoke. Like its unevolved form, it’s weak to Grass, Electric, Bug, Ghost and Dark. For attacks, it can use STAB Surf and Confusion–only the former registers as a threat. It can also use Rest to sleep and regain HP, and Disable to stop you using a move. Try to focus on special attacks.

North from here is an island with nothing on it. But things aren’t always as they seem. Land on this island and search near the right side to find 7 bags of Stardust hidden in the sand. Next, jump back into the water from the north side. Towards the left, there’s a Swimmer you can fight.

Swimmer Roland

Pokémon Level Type
"Starmie" IconStarmie 42 Water/Psychic
"Kingler" IconKingler 42 Water

"Starmie" IconStarmie shares the same Type combination as "Slowbro" IconSlowbro, so it has the same weaknesses: Grass, Electric, Bug, Ghost and Dark. It knows Surf and Psychic–both are pretty strong and are boosted by STAB. Plus it can use Minimize to boost evasion.

Next is "Kingler" IconKingler, an evolved "Krabby" IconKrabby. This one is a lot more straightforward since it’s a pure Water-type. For attacks, it can slam you with a STAB Crabhammer or literally slam you with a Normal-type Slam. Grass-types are ideal.

In any case, head over to the next island that’s north-east from here. If you’re feeling productive, go over and chat to the Sailor who’s standing on the eastern edge, staring out into the ocean.

Sailor Claude

Pokémon Level Type
"Primeape" IconPrimeape 42 Fighting
"Machoke" IconMachoke 42 Fighting

Right, so this is a Fighting-type Sailor, not a Water-type one. His "Primeape" IconPrimeape can use Low Kick to batter heavy Pokémon, U-Turn to damage Psychics and switch out, and Screech to lower Defense. Use Flying or Fairy-types if possible.

Next is "Machoke" IconMachoke, which is the middle evolution of "Machop" IconMachop. This brute can use a variety of Fighting-type moves, plus Bulk Up to boost its Attack and Defense stats. Flying, Psychic and Fairy-types are all good here. Ghost-types will take no damage.

Leap back into the sea and travel towards the next island that’s nearby to the north-west. Here, there’s a Fisherman minding his own business, and a Water Stone near the top-left corner.

Fisherman Nolan

Pokémon Level Type
"Tentacruel" IconTentacruel 42 Water/Poison
"Starmie" IconStarmie 42 Water/Psychic

"Tentacruel" IconTentacruel is an evolved "Tentacool" IconTentacool. It’s still weak to Electric, Ground and Psychic. For attacks, it can use STAB Surf and Sludge Bomb. We’ve gone through Starmie already. This one only uses Hydro Pump, so a Grass-type would be great here.

From the Fisherman’s island, start heading north-east towards the next island that’s slightly further away. As you begin to move out, there’s a Swimmer towards the far right.

Swimmer Jack

Pokémon Level Type
"Tentacool" IconTentacool 42 Water/Poison
"Golduck" IconGolduck 42 Water
"Tentacruel" IconTentacruel 42 Water/Poison

An easy Tentacool to begin with. Although it does know STAB Surf and Poison Jab. If you’ve forgotten, it’s weak to Electric, Ground and Psychic. One super-effective hit can probably shut it down.

Next can be "Golduck" IconGolduck, an evolved "Psyduck" IconPsyduck. It’s a pure Water-type, so you shouldn’t need us to tell you what to do. This one can use STAB Surf, plus Psybeam to hurt Poison-types etc.

Finally, we have an evolved Tentacool. Just in case, it shares the same weaknesses as Tentacool. Jack’s Tentacruel only has Water-type moves, so that’s one less thing to worry about.

As you’re just about to reach the next island, you may notice another Swimmer towards the far left.

Swimmer Spencer

Pokémon Level Type
"Seel" IconSeel 42 Water
"Seadra" IconSeadra 42 Water

Two Water-types that aren’t really menacing. Spencer’s "Seel" IconSeel can use Aqua Jet and Ice Shard–both priority moves that tend to go first. Next, his "Seadra" IconSeadra can use STAB Waterfall, and Dragon Pulse. Grass and Electric-types are the way to go.

If you’re bored, land on the island where the Roughneck is, and then introduce yourself.

Roughneck Martin

Pokémon Level Type
"Raticate" IconRaticate 42 Normal
"Onix" IconOnix 42 Rock/Ground

This "Raticate" IconRaticate loves to use Sucker Punch and Quick Attack, which can go before your attacks. Feel free to smack it in the face with a Fighting-type. Next is "Onix" IconOnix, which is weak to Ground, Fighting and Steel, and massively weak to Grass and Water.

Moving on, continue north. Towards the left, there’s an island with a Fisherman and Coach Trainer.

Fisherman Ronald

Pokémon Level Type
"Seadra" IconSeadra 42 Water
"Gyarados" IconGyarados 42 Water/Flying

Ronald starts off fairly easy with an evolved "Horsea" IconHorsea. This one does carry a powerful Hydro Pump, so Grass-types are recommended. Next is "Gyarados" IconGyarados. This beast can use Waterfall, Crunch and Outrage. An Electric-type is highly recommended. Otherwise, you’ll have to be resourceful.

Coach Trainer Pam

Pokémon Level Type
"Machoke" IconMachoke 44 Fighting
"Jynx" IconJynx 44 Ice/Psychic
"Kangaskhan" IconKangaskhan 45 Normal

All of Pam’s Pokémon know Ice Punch. First is Machoke, which also knows Brick Break. Flying-types are ill-advised, but Psychic and Fairy are still good.

Next is "Jynx" IconJynx, which can use Body Slam, and Lovely Kiss to cause Sleep. Since it’s an Ice-type, it gains STAB when using Ice Punch, so be careful. Hit it with Fire, Steel, Ghost or Dark-types.

Finally, "Kangaskhan" IconKangaskhan can use Dizzy Punch, which has a good chance of causing confusion. If you’re concerned, you could field a Ghost-type and use non-Ghost moves. For example, "Gengar" IconGengar can fight back with Sludge Bomb.

Survive Pam’s chilly punches and she’ll give you TM35 Ice Punch. Finally, to the north-east from here is a small island. Here, there’s a Fisherman and a Hyper Potion near him.

Fisherman Wade

Pokémon Level Type
"Magikarp" IconMagikarp 42 Water
"Magikarp" IconMagikarp 42 Water
"Magikarp" IconMagikarp 42 Water
"Magikarp" IconMagikarp 42 Water
"Magikarp" IconMagikarp 42 Water
"Magikarp" IconMagikarp 42 Water

Oh boy, this is the moment you’ve been waiting for! The legendary Fisherman who has an entire party of "Magikarp" IconMagikarp. They’re all pathetic, so do what you must. But imagine if he had just trained them one Level and evolved them all. Then you might’ve been scared!

Further north, there’s a stretch of land towards the right hand side, with a bunch of tall grass. Meanwhile, if you follow the river to the very end, you’ll reach Pallet Town. Home, sweet home!

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Guide Information
  • Publisher
    Pokemon Company International
  • Platforms,
    Switch
  • Genre
    RPG
  • Guide Release
    23 November 2018
  • Last Updated
    19 December 2020
    Version History
  • Guide Author
    Vincent Lau

Share this free guide:

Welcome to our strategy guide for Pokemon: Let’s Go!

  • A complete walkthrough with strategies to defeat all the Kanto Gym Leaders and conquer the Pokémon League.
  • Encounter tables for all the wild Pokémon, including the rare Pokémon with undisclosed habitats in the Pokédex.
  • Explanations of all the gameplay mechanics for both beginner trainers and Pokémon Masters.
  • Where to find all the Master Trainers and hidden battles after beating the game.
  • A handy mini-Pokédex containing the key details for all 153 obtainable Pokémon and where to find them.

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