Noki Bay is one of the areas of Isle Delfino, the main setting of the GameCube game Super Mario Sunshine. Noki Bay is located at the north behind the islands "dorsal fin". The Noki live here in the platforms floating in the bay. The structures have shells on them, possibly because the Noki's carry shells on their backs. Many small square pictures on the cliffs can be pushed in when sprayed, revealing a secret alcove. They are actually switches hiding several hidden tunnels and Blue Coins. The picture switches have 6 different designs on them, the blank ones making it 7.
An old Noki fisherman and his grandson will help Mario throughout the levels, giving him a diving helmet and tips. Gooper Blooper makes a return here at one of the cliffs peaks. He blocks a hole to a room for the ancient Noki king's tomb. Several Noki shells are on the walls, as are two large jugs that hold a Blue Coin each.
Noki Bay is one of the most beautiful locations on the island, with crystal clear water and mysterious, old ruins. It is here that Eely Mouth's gingivitis has polluted the waters. The eel is in a huge underwater chamber that can be reached by a large waterfall.