Go to Diamond Steppe Island and use the hookshot to get to a cave in the top of the island. This place is eerily like the place in Needle Rock Isle... along with a sunken ship you're not supposed to access. Go through the warp pots to get to the top of the sunken ship. The right combination (I think): the first pot, go around the corner and go into the pot near the Floor Master, left-hand pot under the ship. Anyways, you should be on the ship at the left of the entrance. Climb onto the wooden bar and equip the Deku Leaf. Now, fly over to the ship across from you. Turns out this ship is pretty badly rendered... I think the programmers forgot that you could actually reach it so didn't work on making it nice and happy (it seems like boundaries are automatically placed with images, so even if you're not supposed to be able to go somewhere, it's still solid). Try walking around. You'll find that Link can often defy gravity and climb up very steep walls. But, he'll slip when walking any closer to the wall on the other side of the boat. And, if you walk on the railing, Link will be standing above an area that he should be falling through.
Submitted by: kornyhatemachine