Karuizawa Private Sauna Stay
A private sauna stay where you can rejuvenate both body and mind with open-air baths surrounded by the nature of Karuizawa and nourishing sauna meals.
You can freely enjoy a medium-temperature, high-humidity sauna in the tent sauna set up on your room’s terrace. With a guidebook supervised by a balneotherapy specialist, you can experience a safe sauna in the peaceful forests of Karuizawa.
Enjoy an open-air bath while feeling the crisp, cool air of Karuizawa, and refresh your skin—gently warmed by the sauna’s heat— with spring water from Mount Asama’s underground streams.
For dinner, enjoy a spice sauna hotpot where you can choose from 8 kinds of herbs and spices. For breakfast, a nourishing softshell turtle soup known for its restorative benefits. Meals that gently support your body after sauna.
| Karuizawa Private Sauna Stay | |
|---|---|
| Period | Mon, Dec 1, 2025 – Sat, Feb 28, 2026 |
| Time | 1 night |
| Appropriate age | For all ages |
| Contents | Sauna Experience HOSHINOYA Karuizawa Sauna Guidebook Original Sauna Hat Special Dinner Special Breakfast Refreshment Drink |
| Price | JPY 45,454 per person (excludes tax and 10% service charge) ・Accommodation fee not included. ・Additional meal charges apply for two or more guests. Please contact us for details. |
| Capacity | 1 party of 1 - 3 people |
| Schedule | |
| Hosted in | Japanese, English |
| Reservation | Required by 10 days prior ・A cancellation fee of 50% will be charged if canceled within 3 days prior, and 100% if canceled on the day of the reservation. |
| Notes | ・Exclusion dates apply irregularly. Please contact us for details. ・Reservations are only available for guests who have booked the "Mizunami Room." *Please note that the "Mizunami Room Double" is excluded. |