Hoshinoya Karuizawa

Villas warmed by underfloor heating open onto a geothermal-fed river, where hot spring baths draw their waters straight from the earth

Nestled along a whispering river in the forested hills of Karuizawa, Hoshinoya unfolds like a hidden village where water and woodland set the rhythm of the day. Here, geothermal baths steam beneath ancient trees, and the spa invites you to surrender to restorative treatments that dissolve the noise of the world. Each of the seventy-seven rooms opens onto a private balcony or patio, warmed by heated floors, framing the shifting light of the seasons. Days drift between quiet indulgence and gentle discovery—a leisurely breakfast, a riverside picnic, an evening drawn out at the bar. The restaurant celebrates the region's flavors, while the café offers a slower moment. This is Karuizawa distilled: serene, elemental, unforgettable.

The place

Rooms

Amenities