Aqua Wing Arena is a retractable roof aquatics arena in Nagano. It was constructed as Venue B for the ice hockey events at the 1998 Winter Olympics, and was the last venue to be completed for the Games, in September 1997. Big Hat, the principal Venue A for the ice hockey competition at the 1998 Winter Olympics, is located approximately 5.3 km southwest of Aqua Wing Arena. M-Wave, the site of the speed skating events at the Games is located approximately 2.5 km south of Aqua Wing Arena.