after u get to the beach area (when u find the quicksand)don't get to the area with skull
sign, it's a different mission
get near to the coast if u look to the sea, the path where you have to dive IS IN u'r
right, search for an area that quite deep, dive there, if you find a way, then it's the
right path. (i find it after 1 year)keep diving until you get to another beach. in that
area you can get 3 important things (2 thunder eggs, and 1 bibles)
1 thunder egg, you can find it when you get to the top of the montain, there is a way up.
you can see it clearly.
and 1 another thunder egg, is in the sea, in the ship wreck
dive until you find the ship
swim around the ship, and you will find a hole (you have to look very carefully, because
the hole color is black, almost the same with the color of non-hole), but you can't go to
the ship with the hole. in the hole, you can only see a thunder egg and a familiar red
button (the same button with the button on the big gate when you want to go in to the
mountain, searching for rex's wife)
scope for it, and hit it with aquarang
soon, a gate will open
swim around the boat 1 more time, until you can find an open door, that's the ship's door
get in, and search for the thunder egg
P.S : don't forget to swim to the sea surface, or you will get run out of breath and you
have to start everything from the beggining
the 1 biblies, i can't explain it, but if it's the right way, maybe you can see the
beggining beach from up there (in a small path, not from the top of the valley), don't
fall, and watch your step, go until the small path end, and you will see the biblies


sorry if my english is not very good
anyway, i come from asia, i'm not good in english