Shipwreck Seas

Shipwreck Seas is the first course of the Castle Crawlspace in Super Mario 64. It is similar to Jolly Roger Bay and Dire, Dire Docks due to it being a water level, and sharing several assets, likely due to being an unused level.

Geography
The level is larger an underwater level, with rock hills shooting up above the water to allow the player to get above the water. There is also a ship known as the Ghost Ship floating in the sky, similarly to Jolly Roger Bay's Ghost Ship. The player must use a cannon to reach the ship. Below the water is several sunken ships, with one being able to be entered. There is a cannon on one of the rock islands, and a Bob-omb Buddy on another rock island.

Ghost Ship
The area inside the Ghost Ship is a water-less version of Jolly Roger Bay's sunken ship sub-area. It does not have any of the chests.

Inner Shipwreck
The area inside the enter-able shipwreck is a clone version of Jolly Roger Bay's sunken ship, similarly to the Ghost Ship, but is filled with water, and instead has 10 chests. It otherwise functions the same as Jolly Roger Bay's sunken ship.

Missions
"1. INTO THE SHIPWRECK" "2. 8 ISLAND COINS" "3. UP TO THE GHOST SHIP" 4. S0MEWHERE ON THE SHIP/blockquote> "5. BELOW THE GHOST SHIP" "6. ISLAND CAVE" "7. 100 COIN STAR"

Into The Shipwreck
In this mission, the star found inside the Inner Shipwreck area, after draining the ship's water and breaking a yellow ! box.

8 Island Coins
In this mission, the player must find 8 red coins on top of the rock islands to spawn a star.

Up To The Ghost Ship
In this mission, the player must enter the Ghost Ship sub-area and find a star on top of the platforms.

Somewhere On The Ship
In this mission, the player must find a star on top of a sunken ship.

Below The Ghost Ship
In this mission, the player must use a cannon to shoot to a star below the Ghost Ship.

Island Cave
In this mission, the player must swim to a cave below a rocky island with a star.