Dolphins Arena, also known as Aichi Prefectural Gymnasium, is a versatile sports and entertainment venue located in Nagoya, Japan. Built in 1964, this multi-purpose gymnasium hosts various events, including concerts and sports competitions. With a seating capacity of 7,515, it's home to the Nagoya Diamond Dolphins basketball team and serves as the venue for the annual July Grand Sumo Tournament. Whether you're cheering on your favorite team or rocking out at a concert, Dolphins Arena offers a vibrant and exciting atmosphere for visitors to enjoy.