I think you use cut
ruby:you go to the cavern in mt.moon. sapphire:go to dotted hole in six island.
at the end of iron island in the steel cavern
in a cavern on diamond steppe island
in the underground cavern near Poseidon's statue
Fingal's Cave.
No, it is land locked.
swim of shore and there it will say dive thats the underwater cave
No, it is an island!
It is in Dragon Roost Island after you need to help Valoo
you have to find seeds of fire
the door that's locked
No, it's an island.