BEST AQUA PARKS IN THE WORLD 2.OCEAN DOM JAPAN

2.Ocean Dome, Japan

The stunning indoor water complex is the second largest in the world - 30 000 m2. Its building is the largest roof in the world. It has a wave pool and beach, and a volcano with a beach 130 meters long, which is covered with sand from crushed marble, among other entertainment. A geyser erupts every hour - or more correctly "eruption" as Ocean Dome was closed in October 2007

source:www.hospudka.net