Adventure Forest, where small children to elementary school students can play, has 12 types of large, complex play equipment, making it an athletic spot for families with children.
With lawns and shade, it's a great place to have a picnic lunch.

There is also a Giant Slope (free of charge) where you can sled down the vast artificial turf, measuring 25.5m in length and 33m in width. However, you can only slide down from the middle of the slope, and only children of elementary school age or older are allowed to do so.

There is a Giant Slope Jump Facility (fee required) next door, as well as an artificial turf practice facility for snowboarding and ski jumping.