Ocean Expedition Island is the 38th island released on Poptropica. In it, you are a summer intern for S.E.A. (Submarine Exploring Association), trying to discover a lost civilzation that went under the sea centuries ago. You'll meet mythical creatures, explore uncharted locations, and discover the truth about Ocea.
"Ocea, a city that went down years ago, has been rediscovered. You have joined S.E.A. to discover the secrets of this undersea paradise. Along the way, you'll meet merpeople, their leader, and discover the truth behind S.E.A. Get ready to get wet in the newest island!"
- Your Poptropican- The newest intern at S.E.A, and the main character of it all.
- Louie Bryce- Your fellow intern, and is a bit of a coward.
- Diana Seash- The female intern who may have a secret hidden behind her.
- Proffessor Johnathon Feyes- The founder of S.E.A, who is a huge collecter of fish.
- Scuba Gear
- "Diving for Nerds" Handbook
- Oxygen Tank
- Ocea Empire Remains Photograph