you need to beat clay. and in order to enter his gym, you need to defeat team plasma in the ice storage (or something) south of driftveil.
Joltic the electric bug pokemon found in chargestone cave.
In Chargestone Cave. B2F is the best to find it.
beat clay and he will destroy it
You can find Joltik in Chargestone Cave, but you can't actually find a Galvantula in the wild.
Chargestone Cave. It is a considerably hard pokemon to find so don't lose patience if you don't find it right away!
Chargestone Cave is in the Unova Region (Pokemon Black and White) with entrances by Route 6 and Milstralton City. There is no Chargestone Cave or Mt. Chargestone in Pokemon Ruby because that game is for the Hoenn Region.
You find it in the chargestone cave
In Chargestone Cave you find Ferroseed and evolve it at level 40 to a Ferrothorn.
you can get a lv. 25 klink in chargestone cave
Inside
Joltic the electric bug pokemon found in chargestone cave.
it evolves with a thunderstone you can get one in chargestone cave
Level him up in Chargestone Cave.
In Chargestone Cave. B2F is the best to find it.
Outside the Chargestone Cave.
Chargestone Cave isn't very interesting,but you can find various items, pokemon, and trainers. Also, one of the 7 sages hangs out there.
After obtaining the National Dex, you go East (Right direction) of Pinwheel Forest. There should be an unblock entrance and you go into it, revealing Virizion, waiting for you.