Well normally you would go into the safari zone to find one. Or you can trade from another game, or if you want two, breed one with a ditto. Which you can find on route 218. But you need the pokeradar. Also you breed by putting two Pokemon of the opposite gender in the day care in solaceon town.
croagunk evovles at level 38 or 37
Croagunk(poison type) evolve at 37 into, the sneaky, Toxicroak.
It's a Croagunk.
He's in the Great Marsh
sudowoodo, croagunk, and happiny.
the symbol Pokemon of pastoria is croagunk as shown in the Pokemon episode diamond and pearl #082 cream of the craogunk crop. since croagunk is its symbol they have a sign in pastoria to help you feel as awesome as croagunk by looking like it through the sign in platinum.
It's the symbol of the city. Pastoria, right?
Well at the Safari Zone you should be able to find him in there somewhere..
Just gotta get lucky!
a flying or psychic move should do the trick.
wild croagunk or toxicroak
Croconaw evolves at level 38, not by a stone.