2026 Grand Mercure Yatsugatake Resort & Spa Starry Sky Full-Day Course

A hotel located in Nishiide, Otsumi-cho, Hokuto City. On the rooftop deck at an elevation of about 1,000m, “Yatsugatake SoRa Deck”, a stargazing guide program is offered, limited to one group per day (for hotel guests). The official website does not state whether day-visitors can use the program, so please check the program details and reservation requirements directly when booking your stay.