The document summarizes a visit to the Oceanarium in Lisbon. It opened in 1998 with the theme of "The oceans, a heritage for the future." Visitors are amazed by over 16,000 animals and plants representing over 450 species. The Oceanarium is Europe's largest aquarium, second only to the Osaka Aquarium in Japan. It was built to raise awareness about pollution and overexploitation threatening the oceans.