The park spreads about 750 meters to the hillside along the Tama River, and on sunny days you can see the mountain ranges of Tanzawa and Mt. Fuji far away. It has an area of 67,154 square meters and has plenty of places to visit, including natural forest roads, ancient tumuli, observation plaza, aquatic botanical garden, four seasons wild plants, hydrangea garden, mountain grass michi, plaza. There is also the Turtle Mountain Kofun, and you can enjoy walking around the Treasure Mountain Kofun and the Tama River Tumulus Group and enjoy the flowers of seasons such as cherry blossoms (about 300), hydrangea (about 3000 shares), firefly brush and shibazakura. In addition, some areas are closed at night and during New Year's holidays. Switching time 9 o'clock - 17 o'clock (January, February) 9 o'clock to 18 o'clock (March) 9 o'clock - 19 o'clock (April - August) 9 o'clock - 18 o'clock (September) 9 o'clock - 17 o'clock (October - December)