CNA Arena Akita is an arena in Rinkai-area, Akita, Japan. It is owned and run by the city.[2]Cable Networks Akita acquired its naming rights in 2015.[3] The silver-colored building opened in 1994 and holds 5,000 people.[4] The gym has a dome-shaped 154 feet height ceiling, and added 2,088 extra seatings in 2016.[5][6][7] It is the home arena of the Akita Northern Happinets of the B.League, Japan's professional basketball league. The biggest basketball court in Akita is Akita Prefectural Gymnasium.