Its the world's largest indoor water park, located at Miyazaki Japan, which is a part of the Sheraton Seagaia Resort, measures 300 meters in length and 100 meters in width, and is listed on the Guinness World Records. It opened in 1993, and visitor numbers peaked in 1995 at 1.25 million a year.
The Ocean Dome sported a fake flame-spitting volcano, artificial sand and the world's largest retractable roof, which provided a permanently blue sky even on a rainy day. The air temperature was always held at around 30 degrees celsius and the water at around 28.
Ocean Dome is bigger than many ocean liners - over 1,000 feet long - and has space for 13,500 tons of salt water and 10,000 people, without the mild inconvenience of real salt water, real crabs, real seaweed or fish.
It was pleasantly warm, but it felt faintly like a gymnasium - and they always remind me of exams. Also, the palm trees were too perfect to be real.
The fruit behind the counter turned out to be plastic, and the backdrop was painted with small clouds and a deep blue sky as the Pacific view outside probably should have been.
See.... how much of work can be done with the technology!!.. even a natural Ocean can be simulated. The Ocean Dome... well done engineers!!.