The world’s one and only indoor beach can be found in Japan’s Ocean Dome about 1,200 miles south of Tokyo in Miyazaki, on Japan’s southernmost Kyushu Island.
Here, the water is always blue and salt-free, waves are perfectly timed, sharks are elsewhere, and its never too hot, or cold, to take a dip.
http://en.wikipedia.org/wiki/Seagaia_Ocean_Dome
