The Cheep Cheep Ocean (which is really called Ocean World) is the name of the ocean from the Mushroom World. It is a large, water-filled area that many sea creatures, such as Boss Bases, Porcupuffers, Bloopers and Big Berthas. Mario, Luigi and Yoshi always traveled the ocean to visit many islands, continents, countries to go on vacations or during their quests.

Super Mario Bros. ZEdit

In Super Mario Bros. Z, it was first seen in Episode 5 when Mario, Luigi, Sonic, Shadow and E. Gadd went to Yoshi's Island from Mario's House.