Fun Fun Island is a location from The Legend of Zelda: Skyward Sword. It is a small island in the clouds near Skyloft, inhabited by a clown named Dodoh. Before Link can do anything on Fun Fun Island, he must fulfill a request from Dodoh. To aid Dodoh, Link must have first helped Gondo, the Scrap Shop owner, repair his robot. The sidequest to unlock the island involves finding Dodoh's Party Wheel, which has been lost in the Lanayru Desert. After it is found, Link will be allowed to play Dodoh's High Dive.
Fun Fun Island appears as part of the Skyloft stage. Interestingly, it seems that Cia's use of the Triforce to warp time and space has resulted in Fun Fun Island crashing into Skyloft.