no.
he goes to his underwater hideout cave.
To get Wailord fish. To get Relicanth, dive underwater and search. -Catsura
pokemon suck big time! it is for goobers!
in the cave above Deford city
The Cave of Origin is accessible through Sootopolis City.
you will find him underwater in a cave
in tge cave just out of lilycove city
Use Rock Smash At Rusturff Cave & Team Aqua's WAILMER Will Move.
he goes to his underwater hideout cave.
You need to know the move dive and get something from underwater
If by sapphire you mean kyogre (cover star of Pokemon sapphire) beat team aquas base,find them underwater on route 128 go up through the cave and he runs off.go to cave of origin.
Go to sotopollis and then to the cave of origin(this can b only done after beating Archie in the underwater cave where u found the submariene.)
For Sapphire and Emerald, they are not in the cave
you get one near lilycove city and another hidden in the cave of origin(only SAPPHIRE)
You can only enter that cave after finding team aqua in the underground sea cavern (somewhere underwater) and defeating their boss.
What cave?
There are several Legendary Pokemon in Sapphire, but I guess you're referring to Kyogre. He can first be found in an underwater cave near Sotopolis and after you've found him, he will travel to the cave of origins where you will get the chance to catch him.