Tsumagoi Prince Hotel (Tsumagoi Village, Gunma Prefecture; General Manager: Akihiro Funayama), a secluded highland resort at 1,100 m altitude, is selling a "Sparkling Wine × Brunch" plan from July 18 (Saturday) to September 18 (Friday), 2026. The plan is designed around Gunma Prefecture's "Retreat Gunma" initiative — framing a stay as time for recovery rather than consumption. Guests dine on a terrace overlooking sweeping mountain scenery, wrapped in the crisp highland air, while enjoying the shimmer of sparkling wine alongside a leisurely brunch.
Cool Highland Air at 1,100 m
In a summer when the Japan Meteorological Agency added a new "extreme heat day" category for temperatures exceeding 40°C, Gunma Prefecture is well known for its hot summers. The average daily high in Maebashi, the prefectural capital, ran around 34°C from July through September last year. At Tsumagoi Prince Hotel, the average daily high over the same period was approximately 26°C — a difference of nearly 8°C. The altitude keeps both temperature and humidity in a range suited to beating the heat, and the area has been introduced as an even better summer retreat than Karuizawa. Rather than simply serving a meal, the plan aims to deliver an experience where scenery, temperature, fragrance, and flavour come together in a way that stays with visitors long after they leave.
Sparkling Wine × Brunch Plan
Period: July 18 (Saturday) to September 18 (Friday), 2026
Price: ¥5,000 per person
- Minimum 2 guests required.
- Guests staying on a breakfast-included room plan may add the brunch for an additional ¥2,500 per person.
- Reservations must be made at least one week in advance.
Special Summer Experiences
Wine Pairing Dinner
As an auberge focused on the pleasures of food, the hotel is offering a special summer "Wine Pairing Dinner" in which each dish from a full Western course is paired with a wine selected by Fumikazu Ueno — Chairman of the Japan Sommelier Association and Specialist Sommelier at Grand Prince Hotel Takanawa. The menu draws generously on seasonal local ingredients, and each pairing is chosen to highlight the dish's character, creating a memorable gastronomic experience.
Period: July 17 (Friday) to September 18 (Friday), 2026
Price: ¥35,000 per person
Includes: Western-style full-course dinner, paired wines
Reservations must be made at least one week in advance.
Crystal Bowl Live Performance
Crystal bowls are instruments formed from high-purity quartz crystal. The sound they produce is said to be felt throughout the body and the surrounding space, not only heard. A special performance of live crystal bowl music will be held.
Date: July 19 (Sunday), 2026
Venue: Clubhouse Competition Room
Times: 5:00 PM and 8:00 PM (two performances, approximately 10 minutes each)
Stargazing at the Grass Garden
The Grass Garden is a vast lawn at 1,100 m above sea level. Looking up from it on a clear night reveals a sky packed with stars. Guests can lie on the grass, sit back in a chair, and talk quietly under a canopy of stars. A guide from the Asama-Kita Shika Geopark will provide an explanatory talk during the session.
Period: August 14 (Friday) to August 16 (Sunday), 2026
Time: 8:00 PM to 8:30 PM (approximately 30 minutes)
Participation fee: Free
Retreat Yoga Experience Stay Plan
Tsumagoi is also known as a sacred place for devoted spouses, and the retreat yoga plan is designed as a journey where couples share the same time together, restoring both mind and body. On select dates, yoga sessions are accompanied by crystal bowl music, blending natural surroundings with sound in a unique experience. In the event of rain or unfavourable weather, sessions move indoors so guests can participate regardless of conditions.
Period: July 5 (Sunday) to October 11 (Sunday), 2026
Stay rate: from ¥20,145 per person (twin room, 2 guests per room; bathing tax ¥150 extra)
Includes: dinner (Western course), breakfast (Japanese and Western buffet), yoga lesson, yoga mat rental
In-house guest event-only participation: ¥1,500
