One of the communal bathhouses located in the venerable Futsukaichi Onsen, which is said by the Kuroda Domain in the Edo period to have an onsen magistrate. It is a day-trip bathing facility created as a place of communication for citizens under the official name of Ozen-yu, Musashito-ku, Chikushi-shi. The first floor is a bathhouse where there is a bubble and a whirlpool, and the rest room on the second floor is charged. It operates under the motto of clean and safe hot spring facilities.

You can take a day bath with lunch at a pure Japanese-style inn in Futsuichi Onsen, which has a beautiful garden of 3000 tsubo. Futsukaichi Onsen is a hot spring with a history dating from 1360, which was also sung in Man'yōshū. The Daiyakuba Tsujida no Yu is about 100 tsubo in size, and the source of the water is directly poured into the Yufune. Meals that stick to seasonal materials are also reputed.

The park is located near the climbing entrance of Mount Tian-mong at an altitude of 258m. The first thing you can see is a large water stage using a pond. It is made of wood and is made to feel stately with a tiled roof. In this garden you can observe a variety of plants and wild birds. It is made to make use of nature, such as the Higashiya and walking paths that are in harmony with nature, and it is recommended to relax. The Fuji Festival, which is held in the spring, and the Kankazumi, which is held in the fall, are also well received.