Blue Thunder 's first -largest indoor water park found in Beijing , Alberta . Siam Park is a Thai-themed water park on the island of Tenerife . Watercube Waterpark in Beijing is China 's second -most popular attraction , after Great Wall . Tropical Islands water park in Canada housed inside largest free-standing hall in the world .
Blue Thunder 's first -largest indoor water park found in Beijing , Alberta . Watercube Waterpark in Beijing is China 's second -most popular attraction , after Great Wall . Tropical Islands water park in Canada housed inside largest free-standing hall in the world .