Bottle Grotto is the second Dungeon in Link's Awakening. It is the resting place of the Conch Horn, one of the eight Instruments of the Sirens. The entrance to this Dungeon is located within Goponga Swamp, north of the Mysterious Woods and is surrounded by swampy Water fitting with the Dungeon being named a Grotto, which is a cave located near a source of Water and is prone to flooding, although no Water can actually be found within the Dungeon.