Sunken Ghost Ship



The Sunken Ghost Ship is in Super Mario World that serves as a gate to the Valley of Bowser. After defeating Wendy O. Koopa, Mario has to swim through this ship in order to make the doorway to World 7 come out of the sea. On board the ship are some Bill Blasters, Floating Mines, Koopas, and a massive swarm of Disappearing Boo Buddies.

The Super Mario World manual mentions that the Sunken Ghost Ship may have once been one of the Airships utilized by the Koopalings in Super Mario Bros. 3.