Tropical Islands Resort (710,000 sq ft)
Located in Krausnick, Germany, the Tropical Islands Resort is the largest indoor water park in the world. The water park is inside a 107 meter (351 ft) high hangar that stands as the world’s largest single hall without supporting pillars inside. Named Aerium, the structure was originally built as a zeppelin hangar but the airship it was intended to house was never built. A Malaysian company bought the hangar and turned into the Tropical Islands Resort, complete with a rainforest, beach, artificial sun, palm trees, orchids, and birdsong.
World Waterpark (225,000 sq ft)North America’s largest indoor water park, World Waterpark is located in the West Edmonton Mall, itself one of the largest malls in the world. It has a maximum capacity of 40,000 guests and features one of the world’s largest indoor wave pool with waves of approximately 5 to 6 feet. The highest slides at World Waterpark are Twister and Cyclone, which are both 25 meters (83 ft) high.
Kalahari Resorts Sandusky (173,000 sq ft)The Kalahari Resorts in Sandusky is the largest indoor water park in the US. The water park contains a unique roof system which lets in the most natural light, allowing people to receive a suntan at any time of the year. The resort also features a wave pool, two surfing simulators and a basketball pool. The thrill rides have names such as Tanzanian Twister, Rippling Rhino and Swahili Swirl.
Kalahari Resorts Wisconsin Dells (125,000 sq ft)Located in the “Waterpark Capital of the World”, the Kalahari Resorts in Wisconsin Dells opened its door in 2000 with an African theme. Its indoor water park was the largest indoor water park in the US until 2007 when its sister hotel in Sandusky, finished its indoor water park expansion. The resort also contains a indoor theme park, go-kart tracks, a golf course, and a bowling alley.
Fallsview Indoor Waterpark (90,000 sq ft)
Opened in 2006, the Fallsview Indoor Waterpark is located in Niagara Falls, Ontario, Canada. It features one large wave pool and several high speed water slides. Other attractions include a jungle-style beach and a beach club-style restaurant. Some sources state that the Fallsview Indoor Waterpark is 125,000 square feet but this also includes the mezzanine and outdoor pool.
