In the grass under Cycling Road (but only if you have Pokemon Emerald inserted in the GBA slot).
how 2 get in the under warter cave on Pokemon emerald
You don't. That is only in Emerald version.
Pokemon you can get with the good rod are: TENTACOOL, MARILL, MAGIKARP, CHINCHOU ( under-water ) and CORPHISH.
You need surf, you'll find on at New Mauville (the route is under the cycle bridge to the east) There'll be a thunder stone in the complex. You can also collect Yellow Shards from using Dive in the Ocean and trade them for a Thunderstone. Otherwise you can simply trade with FireRed/LeafGreen with a Pokemon holding a Thunderstone.
you have too be under the bridge on the bike route with Pokemon emerald in your ds.
In the grass under Cycling Road (but only if you have Pokemon Emerald inserted in the GBA slot).
She lives in Route 114 right under Fallarbor Town and near Meteor Falls.
In the grass under Cycling Road (but only if you have Pokemon Emerald inserted in the GBA slot).
how 2 get in the under warter cave on Pokemon emerald
under sootopolis
they are in Pokemon emerald, sapphire, and ruby you must have dive and dig(i might have missed a few) regirock= go to desert cave at route 111 regice= go under water at route 126 registeel=cave at route 120 certain actions must be taken before available to find
its not under a boulder its smeargle and there everywhere in artisan cave.
on route 126 there is a dive patch work your way round until you see the cave under water there you go into the cave and go up
there hide out under the sea you have to have dive to get there
gamestop is 4.99 or ebay.
try the marig tower