in cerulean city
Mistys gym
in 1 of the life rings in the cerulean gym
Misty is to the north of Cerulean, at the end of route 25.
You can access Cerulean Cave in SoulSilver after you get all 16 gym badges (Johto and Kanto).
After fixing the Power Plant, go to the Cerulean Cape, which is NorthEast of Cerulean City
you dont
nugget bridge
you have to beat all gym leaders in jhoto and kanto
in cerulean gym in some of the pumpable tubes
Use the electric and grass type Pokemons.
youtube has info. just get that in you,r head.
there is no gym in pallet town...