Superbunny Cave is located on Dark World Death Mountain just east of the Dark World Death Mountain Shop. You can access the Dark World in this region via the Dark World Death Mountain South East Warp Tile or Turtle Rock Warp Tile. There are two chests in this cave.
Named after the Super Bunny Minor Glitch which is activated if you lack the Moon Pearl and fall down a pit, temporarily granting Link-like abilities until you take damage. This allows you to open the two chests in this cave without the Moon Pearl.