An oceanarium can be either a marine mammal park, such as Marineland of Florida, or a large-scale aquarium, such as the Lisbon Oceanarium, presenting an ocean habitat with marine animals, especially large ocean dwellers such as sharks.
Marine mammal parks 
Marineland of Florida was developed as Marine Studios near St. Augustine in Marineland, Florida, which was followed in Florida by Miami Seaquarium, opened in 1955 and in California by Marineland of the Pacific, opened in 1954 near Los Angeles, and Marine World, Africa USA, opened in 1968 near San Francisco.
SeaWorld San Diego was opened in 1964, developed by four fraternity brothers Milt Shedd, Ken Norris, David DeMott and George Millay. SeaWorld Aurora opened in 1970 near Cleveland, Ohio. SeaWorld Orlando was opened in 1973. SeaWorld (San Diego, Aurora, Orlando) was sold to Harcourt Brace Jovanovich (a publishing company listed on the New York Stock Exchange) in 1976. They purchased Marineland of the Pacific in 1986 and closed the park. They had opened SeaWorld San Antonio in 1988. In 1989 they sold SeaWorld (San Diego, Aurora, Orlando, San Antonio) to Anheuser-Busch, the world's largest brewer and owner of the Busch Gardens Safari Parks, for US$ 1.1 billion. In 2001, Anheuser-Busch sold the Ohio park which finally ceased its activities in 2004. In the capital of Kazakhstan is situated the only Oceanarium in Central Asia
World's largest marine life park 
The Marine Life Park located within Resorts World Sentosa, (Sentosa, Singapore), is set to be the world’s largest oceanarium, with 700,000 fish in 20 million gallons of water. Resorts World Sentosa has made research and education cornerstones of this attraction, which aims to inspire, educate and enrich the understanding and protection of the oceans.
Marine public aquariums 
Modern marine aquariums try to create natural environments. A host of marine animals swim together in the four-story cylindrical tank of the New England Aquarium in Boston, which opened in 1969. At the National Aquarium in Baltimore, which opened in 1981, a walkway spirals up through the center of two gigantic cylindrical tanks, the Atlantic Coral Reef and the Open Ocean, which display sharks, sawfish, and other sea creatures. Since then, many new aquariums have sought even greater realism, often concentrating on local environments. The richly endowed Monterey Bay Aquarium in California, which opened in 1984, is an outstanding example.
Oceanarium planned near Mamallapuram in Tamil Nadu 
The following are the news excerpts collected from THE HINDU as follows: The Tamil Nadu tourism Development Corporation, in association with the Fisheries Department, will set up a world class oceanarium at a cost of Rs. 250 crore at Mamallapuram under public-private-partnership mode. A new field fossil museum will also be set up at Ariyalur at a cost of Rs. 2 crore. After the announcements were mentioned in the budget, a senior TTDC official told The Hindu that it would be the first-of-its-kind oceanarium in the country and tenders would be floated for preparing a Detailed Project Report (DPR). Currently, two sites have been identified for the project and based on the DPR, the government would finalise the location. “We need at least 15 acres of land near the shore The oceanarium will display live models of all the varieties of fishes starting from salt water fish to sharks. Apart from being a tourist attraction, it will generate awareness about marine life,” he said. The government on Thursday announced allocation of Rs. 67.91 crore for the current year. Mr. Panneerselvam said Rs.10 crore would be allocated towards publicity materials to popularise `Destination Tamil Nadu 2014’ and Rs. 153.95 crore for the tourism sector.
See also 
- Manila Ocean Park
- Nordsøen Oceanarium, Hirtshals, Denmark.
- Public aquarium
- UnderWater World Guam
- Taylor, Leighton R., Aquariums: Windows to Nature, Prentice Hall General Reference, New York, 1993. ISBN 0-671-85019-9
Further reading 
- Lou Jacobs, Wonders of an oceanarium: The story of marine life in captivity. Golden Gate Junior Books, 1965.
- Joanne F. Oppenheim, Oceanarium. BBooks, 1994. ISBN 0-553-09520-X.
- Patryla, Jim. (2005). A Photographic Journey Back To Marineland of the Pacific. Lulu Publishing. ISBN 978-1-4116-7130-0.
- Oceanarium — The Bournemouth Aquarium, UK
- Oceanarium, West Australia — suppliers of marine aquarium specimens
- Marine Life Park - Resorts World @ Sentosa