Karuizawa Marriott Hotel is offering “Fermentation Journey,” an accommodation plan that lets guests connect with the people behind Nagano's fermented foods and beverages.
The plan will be available on only four dates: Saturday, September 26; Saturday, October 3; Saturday, October 31; and Saturday, November 7, 2026.
About “Fermentation Journey”
“Fermentation Journey” is an accommodation plan offered by Karuizawa Marriott Hotel with the cooperation of Fermentation Valley NAGANO. Guests visit producers who support Nagano's fermentation culture and hear directly about their work and ideas.
The itinerary visits production sites for products such as Nozawana pickles, wine, and cheese, giving guests a firsthand sense of the region's fermentation culture and craftsmanship through interaction with producers.
The journey begins with the hotel's original fermented herbal tea, blending rice koji from Nagano Prefecture with 100% Karuizawa-grown herbs, accompanied by a fermentation plate featuring Shinshu flavors.
Guests then tour three producers: longtime Nozawana pickle maker Yamahei, the Japan Wine Agriculture Research Institute's Alce Vigne, and cheese maker Atelier de Fromage. Dinner after the tour incorporates Nozawana pickles, cheese and wine from the visited producers into a special menu paired with NAGANO WINE, creating an immersive journey through Nagano's fermentation culture.
Highlights of the “Fermentation Journey” Stay Plan
The plan includes the following features.
・【Feature 1: Experience the connections among people, place and nature that nurture fermentation culture】
A tour of production sites supporting Nagano's fermentation culture
【Feature 2: Gastronomy and hospitality shaped by fermentation】
1. Begin the journey with fermented hospitality
Upon arrival, guests are welcomed with Karuizawa-brand certified herbal tea.
2. A fermentation gastronomy dinner that brings encounters with producers onto the plate
【Feature 3: Restore body and mind with two natural hot springs and spa treatments】
1. Enjoy two different natural hot springs
2. A bathing guide supervised by a hot-spring adviser and rice-koji milk after bathing
3. Fermentation body treatment for deeper relaxation (optional add-on)
For full details, please check the reference information below.
Reference
■ “Fermentation Journey” Stay Plan Overview
Dates: September 26, October 3, October 31, and November 7, 2026
Price: From ¥75,000 per adult (based on double occupancy)
Includes: Accommodation in a Premium Room with a private open-air hot-spring bath or hot-spring view bath
Premium Room (39㎡)
・Dinner at the restaurant (exclusive fermentation dinner course with wine pairing)
・Fermented herbal tea and fermentation plate in the hotel lounge
・Tour of a winery and fermented-food production sites
・Hot-spring bathing guide supervised by a hot-spring adviser
・“Plus Koji Rice-Koji Milk” fermented drink in the guest room
・Breakfast at the restaurant (buffet style)
※ Advance reservation required by 5:00 p.m. three days before arrival.
※ Reservations are accepted for parties of two or more, limited to five groups per day.
※ The “Fermentation Treatment” at AN SPA is limited to four groups per day and requires advance reservation three days beforehand. Optional fee: ¥22,000 per person (tax included) / 60 minutes.
※ Prices include service charge and consumption tax. Bathing tax and accommodation tax are charged separately.
※ Program details may change depending on weather and growing conditions.
＜Reservations & Inquiries＞
Karuizawa Marriott Hotel TEL: 0267-46-6611 URL:https://www.karuizawa-marriott.com