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Karuizawa Four Seasons Hotel delivers breathtaking views of Koasamayama during peak fall season, with rooms and private onsen facing the mountain. The property offers guided forest walks and traditional Japanese tea ceremonies. Located just a 10-minute walk from the Koasamayama trailhead, it’s ideal for nature lovers. Book through the HopeGoo app to access exclusive wellness packages with breakfast included.
Karuizawa Highland Villa Hotel is ideally located at the base of Koasamayama, offering free parking and a 24-hour shuttle service to the trailhead—just a 7-minute walk from reception. Rooms feature heated floors and premium down comforters for cozy mountain nights. The on-site Japanese restaurant serves seasonal mountain ingredients, and guests can book hiking guide packages via the HopeGoo platform for an enhanced alpine experience.
Karuizawa Starfield Terrace Hotel features a glass-roofed indoor onsen equipped with telescopes and nightly astronomy guides. Located far from light pollution, it offers exceptional views of the Milky Way and meteor showers. The hotel hosts monthly "Stargazing Nights" with photography workshops. Reserve your stay through the HopeGoo app to unlock complimentary star-viewing kits and expert-led sessions.
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