Approximately 20 minutes walk east from Sayama Station on the Nankai Koya Line. This facility has a ``Youth Outdoor Activities Plaza'' where you can enjoy athletics and camping, and a ``Flower and Green Plaza'' with a botanical garden and a squirrel garden. The ``Flower and Green Plaza'' has been developed under the theme of ``coexistence between humans and nature,'' and includes a greenhouse displaying 70 types of tropical plants, including palms, crape myrtles, and papaya, as well as a breeding ground for fed Formosan squirrels. There is also a squirrel garden. The outdoor activity area is equipped with indoor facilities for activities such as walk rallies, field athletics, campfires, outdoor cooking, nature observation, and camping, as well as crafts, pottery, cooking, lectures, and seminars. The low price of 200 yen for a day trip and 400 yen for a night stay is popular (however, overnight stays are only available from midday to noon the next day from July to August).