SkyWhale

The SkyWhale is a mini-boss from Phantom Hourglass. Specifically, it is the second mini-boss fought at sea. (The first one being the Giant Eye Plant) It resembles a large floating purple and black Whale with four tentacle-like fins, large lips, a horned nose and six eyes

It is encountered when Link sails into the waters of the south-eastern sea for the first time. Upon sailing up toward Goron Island, a large cyclone will appear and take the ship into the sky, making the screen black out. As visual contact is re-established, Linebeck tells Link that the the ship's engine has been soaked and needs time to dry. It appears while the ship is idle.