Hoenn's next. Get ready to take down notes.

Mudkip: Pond(Same as Squirtle)
Torchic: I forgot. Try Bulba and Treeco's area and the norrow path to the mountains.
Treeko: Same as Bulbasaur(See part 1)
Kyogre:Beach
Groudon:Mountain
Regis: Mountain
Rayquaza and the Latis: I haven't tried. I'll guess the mountains

Send me a PM to ask for a pokemon pal park location.(please dont pm me about johto starters. i dont have em.)