Death Mountain Crater
Ocarina of Time Walkthrough
Death Mountain Crater sidequests:
Starting from the passage way in Darunia’s Chambers that his son (with whatever your name was) told you about. First off, you will notice right near you a broken bridge. Pull out your hookshot and look to the other end of the bridge. Aim for a poll sticking out; use your hookshot to reach that side of the bridge.
Now you meet Sheik once again. This time he will teach you the Bolero of Fire, so you can warp and return to the Crater whenever you choose.
Head through the doorway up to your left, and down the stairs. This is the entrance to the Fire Temple.