The ocean dome

Man-made beaches are achieving reputation worldwide . You can visit them in Monaco , Hong Kong , Paris , Berlin , Rotterdam , Toronto and others , however the largest among them is Seagaia Ocean Dome in Miyazaki , Japan . 

The Ocean Dome , which was part of the Sheraton Seagaia Resort , measures 300 meters in length and 100 meters in width , sported an imitation flame-spitting volcano , synthetic sand , artificial palm trees as well as the world's greatestretractable roof , which provided a permanently azure sky especially on a rainy day . The air temperature was always held at around 30 degrees Celsius and water at around 28 . The volcano gets active every 15 mins and spews fire eachhour , and extraordinary waves lashes the beach for surfers’ delight .