You have to go underwater and follow the sharpedo.
In puel sea. It is corsola.
You can get it in Puel Sea after doing a certain quest.
You have to go faster by going through jet streams, but you only follow Sharpedo in Puel Sea
go to puel town,talk to one of the sailorsat the beach and ur ready
go to the Puel harbor ride to the boat of capt. Puel then dive to the Puel sea
Puel Sea.
On the bottom right of Pueltown.
in puel sea and possibly sea of wailord.
You can get a chinchou in I think the puel sea. Yeah, its the puel sea. Go to this website to see how. ( no one re answer this question because i am returning to answer it )
If you're lookin' 4 a Sharpedo, you have to go to Puel Harbor, go underwater and find the bridge key Sharpedo took. You need a Mantine to get to him, but Mantine are everywhere, but very rare. Sharpedo is hard to catch up to, but easy 2 capture.
On ice to the right-hand side exit in Ice Lake(from northern Hia Valley. Hia Valley is outside crysta Cave. Crysta Cave is near Union Road and Union Road is south of the Ranger Union.). Do not capture Glaceon last if you are doing Murph's quest(capturing all the Eeveevolutions.), because you might need a poke assist for it. ;)
first you need to get a ho-oh EDIT: not if you're talking about the quest. if you go to the harbor in puel town, then go up, left, then down, eevee should be by the dropoff.