The main attraction of Manila Ocean Park is the Oceanarium which houses 14,000 sea creatures from about 277 species all of which is indigenous in Southeast Asia. The Oceanarium has seven sections and contains 2,600 cubic meters of sea water. Its main feature is the 25 meters (82 ft) 220° curved walkway tunnel after a 55-meter walkthrough inside the Oceanarium. The water used in the Oceanarium is derived from the Manila Bay which is filtered to be suitable to marine life. It also has an educational activity area, function rooms for events, and shark and stingray viewing area situated in two levels. The Jellies Exhibit, a separate attraction hosts jellyfishes. The Back of the House features information on the operation of the facility itself.