Death Mountain Crater

From Zelda Wiki.org

This is the volcanic center of Death Mountain. It can be accessed from the top of Death Mountain or through an ancient Goron pathway that leads from the chief's room. The heat of the crater is too intense to be in for very long unless one wears a Goron Tunic.

It is the location of the Fire Temple and home to Volvagia. It also contains a great fairy fountain. The Crater can also be accessed by playing the Bolero of Fire, which teleports Link to the Triforce stand there. The Bolero of Fire is taught to Link by Shiek when he first enters the crater.