KOS HOTEL & RESTAURANT is a private whole-villa stay in Nagahama, beside Lake Kawaguchiko. Opened in December 2025, the Japandi-inspired space accommodates up to four guests and includes a lake-facing living room with a fireplace.
A private tent sauna and BBQ space offer additional ways to spend time by the lake. The on-site restaurant serves wood-fired menus based on seasonal ingredients from Yamanashi and the Mt. Fuji area.
The restaurant also welcomes visitors who are not staying at KOS. Check the official website for current availability, restaurant reservations and stay details.
Address: 1911 Nagahama, Fujikawaguchiko-cho, Minamitsuru-gun, Yamanashi 401-0331, Japan.