Where is the best place to train level 35-45 pokemon?

[Cocoputer]

I have tried different routes, but it takes too long to level them up.

(I'm only in the Kanto region)

[Giovanna]

I'd head over Seaform, if I was you. (Located between Fuchsia City and Cinnabar Island).

 

You'd need the 5th badge and Surf, though. I don't know where you are currently in the story, if you're not that far yet.. I don't really know. Did you evolve your pokemon ? If you didn't, it isn't supposed to be a struggle to level up.

[Cocoputer]

I'd head over Seaform, if I was you. (Located between Fuchsia City and Cinnabar Island).

 

You'd need the 5th badge and Surf, though. I don't know where you are currently in the story, if you're not that far yet.. I don't really know. Did you evolve your pokemon ? If you didn't, it isn't supposed to be a struggle to level up.

I'm actually finished the Fuchsia Gym badge just recently.

[Giovanna]

Then, as I said, you should head over Seaform island. This is by far the best exp spot pre-victory road.

 

Good luck !

[Nebulas]

I'd head over Seaform, if I was you. (Located between Fuchsia City and Cinnabar Island).

 

You'd need the 5th badge and Surf, though. I don't know where you are currently in the story, if you're not that far yet.. I don't really know. Did you evolve your pokemon ? If you didn't, it isn't supposed to be a struggle to level up.

I'm actually finished the Fuchsia Gym badge just recently.

 

Hi there Cocoputer

 

As Giovanni said, the Seafoam Islands are the best place to level up your pokemin if you have yet to unlock Cerulean Cave and the Dragon Shrine.

 

Kind regards and have a great day.