You can get Shoal Shells and Shoal Salt to make into Shell Bells here. Salt at low tide, shells at high tide, I think. Maybe be reversed. There is no real purpose to the cave and the game can be completed without entering it.
In Shoal Cave
Go pass Mossdeep city surf to a cave where two girls are and there you are at Shoal cave hope this helped :]
North of Mossdeep City! Cha Cha!
You have to wait for high tide.
You need the water to be overflowing.
Kyorge does not appear in Shoal Cave. In Pokemon Sapphire Kyogre appears in the Cave of Origins as part of the story. In Pokemon Emerald Kyogre appears in the Marine Cave after defeating the Elite Four.
Shoal Cave.
go to shoal cave above mosdeep city
It's TM07 and can me found in Shoal Cave.
sorry but you cant .........but i wish we could BY:GAVIN/ POKEMON FAN
u find it in shoal cave in the ice area at low tide
your internal battery must not be dead. then it is based on time