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 haunted ship in order to make the doorway to World 7 come out of the sea. On board the ship are some Bullet Bills, Mines, Koopas, and a massive swarm of Disappearing Boo Buddies.

Overview
Mario (or Luigi) comes out of a Warp Pipe underwater next to the sunken ship. There is a ? Block nearby, with Bill Blasters nearby. The player must then go down another Warp Pipe that leads under the deck, where Eeries and the massive swarm of Disappearing Boo Buddies can be found. After passing these, there are Circling Boo Buddies and two Boo Buddies. Then there is another Warp Pipe that leads to a huge drop. When the player starts falling, there is a Starman that can be grabbed. On the way down there are Dragon Coins, falling Koopa Troopas and Koopa Paratroopas. There is a platform halfway down with a ? Block that contains another Starman. Farther down there are huge bunches of coins and falling Mines. The player must fall to the right to avoid falling into the water with the Mines. There is a platform on the right with the Green ? Ball that must be touched to beat the level. After Mario beats the level, a giant cave entrance that looks like Bowser's head will rise up out of the water. Mario will enter the cave that leads to the Valley of Bowser.

Enemies

 * Bullet Bills
 * Eeries
 * Disappearing Boo Buddies
 * Boo Buddies
 * Circling Boo Buddies
 * Koopa Paratroopas
 * Koopa Troopas
 * Mines

Trivia

 * The Super Mario World manual mentions that the Sunken Ghost Ship was once one of the Airships utilized by the Koopalings in Super Mario Bros. 3. This could solve why this level has a ? Ball, although in Super Mario Bros. 3, they were found in Fortresses, not Airships. In addition, its front does not match any of the Koopalings' airships.
 * This is the only level in Super Mario World that has a ? Ball.
 * This is the only level in Super Mario World where Yoshi can be seen with ghosts.
 * According to the Game Boy Advance remake, this level is the first level of World 7.
 * The Sunken Ghost Ship, the Valley of Bowser, Yoshi's Island, the Twin Bridges, and the Forest of Illusion are the only areas in Super Mario World to not have their names be food themed. However, the Japanese release averts this, with the literal translation of the Sunken Ghost Ship meaning Sunken Ship of the Lemon Soda Ocean Trench.
 * Haunted Shipwreck, the Ghost House of Sparkling Waters in New Super Mario Bros. U, is based on the Ghost Ship from this game.