The Legend of Zelda: Ocarina of Time Glitches

Get Under the Ice of Zora's Domain
First you need to do the swordless Link glitch. Go to Lake Hylia on Epona. Then, go across the two bridges and to the island with the big tree. On Epona, hookshot onto the tree and jump off Epona. You should fly up in the air. Now head towards the corner in the south screen (the one with a Gossip Stone standing there. Now, most people thought you could get off the hookshot by only moving towards what the hookshot stuck to, but I discovered that if you are hit by an enemy, you will launch off as well! Now, wait for the bird to hit you and once he does, hold the analog stick in the direction the wall is. You should fly over it. Now, use your Zora Tunic and Iron Boots to sink very low (but not too low, or you'll be transported back). Once very low, take the boots off and start swimming in the direction of the alternate entrance to Zora's Domain. Then when you see you've gone high, put the boots back on and sink, then take them off and swim again.

Now, if you want to make it easy for yourself, swim past the entrance and don't stop swimming until you've seen that you are falling like a rock. As soon as you see this, INSTANTLY hold the analog stick back to get in the water again. Now, let yourself float to the top and the camera should go back to normal so you can see yourself again. Once the camera is back to normal, put on your boots and sink down to see the entrance. Now, just swim right into the square and you're in.