Twin Islands

The Twin Island Caves are a location in The Legend of Zelda: Majora's Mask. It is located between the Mountain Village and Goron Village. Despite its name it is made up of three islands only one of which contains a cave where Link can get obtain a Bottle of Hot Spring Water. Just off the Twin Island Caves is the Goron Racetrack where Link can win a bottle of Gold Dust.

Story
When Link first arrives at the Twin Islands Cave it is frozen due to the long winter. It is here where Link can find the Goron Elder on the First and Second Day. Once Link learns the Goron's Lullaby from the Elder and defeats Goht in Snowhead Temple the ice surrounding the islands melt allowing Link to aquire a Piece of Heart from beneath the ice while in his Zora form. Using the Powder Keg Link obtains from Medigoron Link can blow open the Boulder in front of the Goron Race Track and participate in the races.