Available languages
7 hours
Mobile ticket
Guests will journey deep into the hidden region of Nagano known as Akiyamago, a remote mountain valley rich in natural beauty and cultural heritage.
Here, they’ll soak in one of the wildest open-air hot springs in Nagano, where the healing waters bubble up directly from the riverbed — a rare and unforgettable experience.
Important Note:
The outdoor hot spring may be unavailable during bad weather if the river overflows. In that case, we’ll visit a local indoor onsen instead.
The tour also includes a taste of tradition with a hearty bear meat hot pot lunch, called "Kumanabe", a local specialty passed down through generations.
On the way back to Iiyama Station, we’ll stop by a local sake brewery, where guests can enjoy tasting some of Nagano’s finest rice wine.
Akiyamago is usually closed off in winter due to extreme snowfall that even surpasses ski resorts, but we operate guided car tours to this remote area.
Public transportation options are available nearby
Specialized infant seats are available
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
For a full refund, cancel at least 24 hours before the scheduled departure time.
Kiriake Onsen
Entrance fee for wild outdoor bath in Akiyamago Yusenkaku and hot spring in the river.
Akiyamago
Lunch at Naebaso(苗場荘) where is one of the oldest house in this area. They provide "KUMANABE", Bear Meat Hot Pot, The local's traditional dish
KUMANABE(Bear meat hot pot)lunch at Naebaso
insurance
Coffee service at Akiyamago Yusenkaku
Air-conditioned vehicle
sake tasting
Transportation from/to IIYAMA STAION
Shibu Onsen Kadoya
2201 Hirao Yamanouchi-machi Japan
Hotel Iwatoya
Tsubame Onsen, Myoko Japan
Shiga Kogen Olympic Hotel
Ichinose Shigakogen, Yamanouchi-machi Japan
Koishiya Ryokan
2277 Hirao, Yamanouchi-machi Japan
Pickup included
1 review
Total reviews and rating from Viator & Tripadvisor
Awal M,,May 2, 2025
- Review from Viator
Had an amazing time. Though I have been to Japan previously, it was my first experience of bathing in a natural onsen, trying bear meat, tasting sake at a brewery, and being driven around the Nagano mountains in a car. Apart from the fun activities on this tour, I had a great time learning more about the Japanese lifestyle from Umut (the tour operator) who shared his own experience being a Turkish guy now living in Japan. There was hardly a moment when we both were quiet :D Thanks Umut 🙂


Operated by Yadoroku., co.ltd