Mario Kart DS
The stage is a round stage with three sandy islands. The outer two are semi-circle shaped and surround the central island, which is round like a circle. This stage is unique as the course changes throughout the battle. The water level rises and falls, filling the gaps between the islands with water when up. Driving in the water on the outsides of the two outer islands will result in Lakitu retrieving the player. It is the second dynamic battle stage in the Mario Kart series, the first being Tilt-A-Kart from Mario Kart: Double Dash!!. Driving in the water slows down drivers so much that they can become a prime target for Green Shells.
Mario Kart 7
The stage hasn't changed much from Mario Kart DS, however due to the game's new underwater driving mechanics, battlers are no longer slowed down by the water.
Mario Kart Trivia
This is the only battle course that has appeared in a game made for handhelds twice.