From Zelda Legends Wiki
Koholint Island is the overworld location for The Legend of Zelda: Link's Awakening. The intro sequence to the game leads the gamer to believe that Link floats up to this island's shore after his ship was struck by lightnightning in a terrible storm. Link later finds that the Island itself was created in a dream, and the island dissappeared with his dream when he awoke (though in both endings for the game, characters from the island are seen flying over Link). It is unknown whether the island is really the Wind Fish's dream, Link's, or a combination of both.
The island has a mountainous region that is crowned with a giant egg, where the Wind Fish sleeps. Mysterious Woods are at the left, and Desert is at the far right.
In the middle of the island is Mabe Village and Animal Village.