This comprehensive sport and cultural facility houses a multi-purpose gymnasium, an extracurricular activity hall and Koyama Coliseum (open-air stage).

The multi-purpose gymnasium has a main arena and sub arena, including a spectator stand seating about 500 people, a 200 meter indoor track, and connecting rooms for sports clubs, exercise, training, meetings, research and physical education lectures. The gymnasium is used as an official site for various sports events and is a base for sport exchange. The extracurricular activity hall comprises rooms for cultural clubs, meetings and exercise, and a mini hall (400 seats) is used for plays and concerts. In addition, Koyama Coliseum (2,000 seats) can be combined with the mini hall and used for larger events, providing both indoor and open-air facilities. Also, Koyama natural walking trail is nearby and neighboring people, including kindergarten and elementary school children, can enjoy hiking and being in the great outdoors.