Sea Platforms are scattered across the Great Sea in The Legend of Zelda: The Wind Waker for the GameCube. They are patrolled by Bokoblins and the treasures that you usually get for defeating the enemies stationed there are negligible, though one does have a Piece of Heart and several have Treasure Charts. Sea Platforms also appear on the Pirate Ship stage of Super Smash Bros. Brawl in the background. They'll occasionally shoot bombs out at the players, which will usually result in an instant K.O.
List of Sea Platforms
The following are a list of where the Sea Platforms are located. Take note that they're not actually stationed on the island, but in the sea next to it. After the name of the island the number of platforms in the vicinity will be listed. The next thing mentioned is the treasure that can be found here; if there's nothing listed then it's nothing to write home about.