Dee Ess Island

Dee Ess Island is one of the many islands on Phantom Hourglass. It is located on the southeastern quadrant of the sea. This island was made to highly resemble a Nintendo DS (its name being an obvious pun) and you can also play a game called the Goron Game.

Goron Game
The Goron Game is playable after you get the letter from Gongoron saying he got a part time job at a nearby island. To get this letter, you must visit Goron Island after leaving it for the first time.