Ahh, I dunno about Johto, you're asking the wrong guy for that. But I could tell you all about some great spots on Kanto! Fraggles are practically born able to swim, so of course there's the Cerulean City water park.

And there's this... [Hold on, he has to search for the word. ...Nope, can't find it.] Well, I don't remember what it's called, it's not a word I'm all that familiar with. But it's in Celadon City, and it's got lots of flashy lights and music, and great games! I haven't actually gone in there yet, I'm usually just passing through the city on my way to the next cave. But it seems pretty cool!

[The casino, of course.]