Indiana University Natatorium Swimming Championships, local/regional meets, as well 11 Olympic Trials in swimming, diving, and synchronised swimming. The main competition pool of the Natatorium is 50-meters with eight racing lanes. Two moveable bulkheads allow for long or short course events as well as hosting water polo and synchronized swimming. The seating capacity of the Natatorium is 4,700, making it the largest indoor pool in the United States. There is also room for additional seating of 1,500 on deck. The depth of the pool is at the ends and at center of pool. Water temperature is kept at . The main pool contains
Indoor water park Indoor water park An indoor water park is a type of water park that is located inside a building. An indoor water park has the ability to stay open year-round, as it is not affected by weather conditions.. The first indoor water park was built in Edmonton, Alberta, Canada in 1985 at the West Edmonton Mall. It is called the World Waterpark and is over . It was a success for the mall. The first indoor water park in Europe was built in Blackpool in 1986. It is called the Sandcastle Water Park (Blackpool). The first indoor water park in