ENZANSO Group English

Latest Information

2025/3/3 

Enzanso Group will begin accepting room reservations for the year 2025 at 10:00 a.m. on March 18.The start date for accepting reservations will vary depending on the type of room and hut.
燕山荘グループの2025年度の宿泊予約は、3月18日午前10時から受付を開始します。
部屋の種類、小屋により、受付開始日は変わります。

Reservation start date schedule details
予約開始日日程詳細

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2024/11/24
2024 ENZANSO Group’s Enzanso Hut, Daitenso Hut, Hutte Oyari Hut, Ariakeso Hot Spring Inn, and Kassengoya Hut closed all operations for the season on November 24.
Next year’s operations will begin in late April. The opening date will be different for each facility.
We will announce the opening date on our website when it is decided.

Thank you for using ENZANSO Group’s huts this year.

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2024/7/12
The traverse route (Higashikama One trail) from Mt. Tsubakurodake to Mt. Yarigatake can now be walked.

The Yarisawa hiking trail, which was damaged by heavy rain, is expected to be closed from July 12,
Please check the Yarigatake Sanso website for details.
「The Yarisawa hiking trail has completed its temporary restoration.」

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2024/6/11
≪About the traverse route of Mt. Tsubakurodake to Mt. Yarigatake≫
The route from Mt. Tsubakurodake (2,763 m) to Mt. Yarigatake (3,180 m)is more difficult due to snow accumulation, so those who are not accustomed to climbing this route are recommended to start climbing in early July or later.

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2024/2/12
Reservations for Enzanso Group lodging for FY2024 (web reservations) will be accepted from 10:00 a.m. on March 14 at any time.
■Enzanso Group Reservation Start Date Schedule for FY2024
From April to early July, there is snow in the Northern Alps, so please refer to the following information and come equipped for safe climbing.

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≪Enzanso Group Photo by season≫
・Enzanso Hut: https://www.enzanso.co.jp/enzanso/enzanso-gallery
　Open: Saturday, April 20, 2024 to Saturday, November 23, 2024
　Open for year-end and New Year’s holidays: Late December 2024 to early January 2025
・Daitenso Hut: https://www.enzanso.co.jp/daitenso/daitenso-gallery
　Open from Saturday, June 15, 2024 to Sunday, November 3, 2024
・Hutte Oyari Hut: https://www.enzanso.co.jp/hutte-ooyari/hutte-ooyari-gallery
　Open from Saturday, June 29, 2024 to Sunday, October 13, 2024
・Ariakeso Hot Spring Inn：https://www.enzanso.co.jp/ariakeso/ariakeso-gallery
　Open from Saturday, April 20, 2024 to Monday, November 4, 2024
　Closed: 5/8 (Wed), 6/5 (Wed), 7/3 (Wed), 9/4 (Wed), 10/9 (Wed)
・Kassengoya Hut: https://www.enzanso.co.jp/kassengoya/kassengoya-gallery

≪Equipment required for mountaineering during the snow season ≫
(April to June, November, and New Year’s holidays)
Since snow conditions change from year to year, please refer to each lodge’s blog, which is updated daily during the lodge opening period, for details.

≪Reference equipment≫
・Outer shell top and bottom (no raincoats),
・Down jacket, top and bottom,
・Winter hiking shoes,
・Crampons (chain crampons or 12-pawl crampons depending on the amount of snow),
・Ice axes (depending on the amount of snow),
・Long spats,
・Gloves (over-gloves and inner gloves),
・Two types of hats (woolen hat and eye-catching hat),
・Neck warmer,
・Sunglasses and goggles,
・Portable hot water pot such as Thermos,
・Action food,

Please note that water is not available during the winter season.

▲May 7, 2023
In front of Enzanso Hut entrance with Mt. Tsubakurodake in the background．

≪Please check each hut’s blog for updates throughout the operating period≫
・Enzanso Hut Blog
・Daitenso Hut Blog
・Ariakeso Hot Spring Inn Blog
・Hutte Oyari Hut blog

■Northern Japan Alps Panorama-Ginza Hiking Map（Asumino City）
（北アルプスパノラマ銀座ハイキングマップ）

■Introduction to the Northern Japan Alps
（北アルプスの紹介）

■Hiking the Japan Alps
（日本アルプス・ハイキング）  

※「Azumino Tourist Information」Published from the homepage

ENZANSO Group(English)

1. For mountain climbers of the Northern Alps in Japan

First and foremost, the Northern Alps are noted for their high elevation.
Eight peaks are more than 3,000 meters in height, and almost all of the other mountains are above 2,500 meters, which is above the timber line. Climbers need to prepare themselves for the special weather conditions of high mountain ranges such as strong winds, cold temperatures, snow, and geographical features.

 

2. About the Enzanso Group

Enzanso is a mountain hut on the ridgeline from the top of Mt. Tsubakurodake (2,763 m) in the Northern Alps in Nagano Prefecture, Japan. Founded in 1921, it is one of the leading historic mountain huts in the Japan Alps and celebrates its ccentenary in 2021. Ariakeso, Daitenso, Hutte Oyari, and Kassengoya and the Tenkei Travel Agency are part of the Enzanso Group.

●Enzanso Hut(Altitude: 2,712 m)

30 min from the top of Mt. Tsubakurodake (2,763 m)

●Ariakeso Hot Spring Inn(Altitude: 1,380 m)

Lodging / hot spring / day visitor bathing

●Daitenso Hut(Altitude: 2,880 m)

10 min from the top of Mt. Otenshodake (2,922 m)

●Hutte Oyari Hut(Altitude: 2,884 m)

1 hr from the top of Mt. Yari (3,180 m)

●Kassengoya Hut(Altitude: 2,350 m)

Just for a rest

●Tenkei

Travel agency for overseas trekking activities

Ariakeso to Enzanso Hut – Beginners’ course

It is 700 m and 15 minutes on foot from Ariakeso Hot Spring Inn to Mt. Tsubakurodake trailhead. To Enzanso, it is a distance of 5.5 km and an elevation gain of 1,303 m from the trailhead, taking 5 hours to climb on a maintained trail. There are rest benches: the first, second, third and Fujimi benches are situated about every 45 minutes until you arrive at the Kassengoya Hut in a zigzag climb taking 4 hours. From Kassengoya, it takes 90 minutes to Enzanso, passing through Kassen-one-no-kashira (trig point) where the view opens up. It takes 30 minutes from Enzanso to the top of Mt. Tsubakurodake (2,763 m).

Enzanso to Daitenso – Intermediate course

From Enzanso, it takes 3 hours 30 minutes on the traverse course (Omote-ginza course) and allows you to view Mt. Yari all the way through. Daitenso is just under the top of Mt. Otenshodake (2,922 m), which is the highest peak of Azumino City. It is 10 minutes from Daitenso hut to the top.

Daitenso to Hutte Oyari – Advanced course

Continuing along the Omote-ginza traverse course from Daitenso for 7 hours with a view of the Yari-Hotaka Mountain Range will take you to Hutte Oyari. It takes 1 hour from the hut to the summit of Mt. Yari.

3. Service

Reservations

• Reservation is necessary for an overnight stay.

Room

• The majority of rooms are communal.
• Enzanso and Daitenso have some private rooms.
• Private rooms only in Ariakeso Hot Spring Inn. (Single room reservation is required for private rooms)

Meals

• Breakfast and dinner are served according to the sunrise and sunset time. Dinner will be served in order of guests’ arrival and may be served several times depending on the number of guests on the day. Breakfast is served on a first come first serve basis.
• Those with allergies are advised to make their own meal arrangements.
• Please inform us in advance if you are vegetarian.

Lights-out time

Electricity is powered by in-house generators. Lights-out is at 20:30.

Payment

Cash payments only. We apologize for any possible inconvenience.

Wi-Fi

Unavailable

Rules on Our Mountain

For the purpose of protecting natural environments and precious wild animals such as rock ptarmigans, we kindly ask hikers to refrain from bringing any pets in the Northern Japan Alps.

4. For First Time Climbers of Mt. Tsubakurodake, the Northern Japan Alps

5. History of Enzanso

Enzanso was founded by Chihiro Akanuma in 1921 and was passed on through three generations: from Chihiro, through Atsuo, and to Kenji Akanuma. The current main building was built in 1935, and the timber used in its construction was carried by hand from around the third bench (elevation 2,000 m). From the time of its founding, they have served items such as coffee, tea, as well as curry and rice, which was a very modern menu at that time and has continued to the present day. The “Sun Room” cafeteria is one of the most popular features of Enzanso. While enjoying coffee, cake, and draft beer, you can enjoy a beautifully scenic sunrise and views of Mt. Fuji, Mt. Asama, and Nagano. Special bedding (futon type sleeping bag) was jointly developed by Mizuno Corporation and Kenji Akanuma. Made from a cotton material that greatly retains heat, it also eliminates odors and bacteria, and remains dry. It is always comfortable and kept clean.Toilets are a portaloo style.

Rock ptarmigan

Rock ptarmigan can be seen from Mt. Kita-Tsubakurodake, along the ridgeline of Omote-ginza course, and around Enzanso. Japan’s rock ptarmigan are carefully protected, so they are not afraid of humans – a fact that is quite surprising for ptarmigan researchers around the world.

Komakusa (dicentra peregrina)

In July the pale pink komakusa, commonly called “queens of alpine plants”, begin to bloom.

Strange rocks

In the area around Mt. Tsubakurodake and Enzanso, you can enjoy a number of strangely shaped rocks such as Dolphin Rock, Gorilla Rock, Spectacles Rock, and Lion Rock.

6. Facilities

Enzanso Hut

 

Open	April 19to November 23, 2025 Around New Year’s Day from late December 2025 to early January 2026
Rate	One night with breakfast and dinner – ¥15,000 (1 adult)～　Reservation required
Facilities	Front desk, rooms (communal, private), shop, ‘Sun Room’ cafeteria, restaurant (lunch available), clinic, campsite (40 tents：Reservation required)

Ariakeso Hot Spring Inn

 

Open Closed	April 18 to  November  3, 2025 On November 4, only one-day bathing will be open. Closed:May 8, June 4, July 2, Sep1，October8
Rate	One night with breakfast and dinner (1 adult) – from ¥14,850～  Reservation required
Facilities	Front desk, rooms (private), shop, restaurant (lunch available), bath , lounge

* Ariakeso is located in Nakabusa Gorge, surrounded by the famous peaks of the Northern Alps in Chubu Sangaku National Park: Mt. Tsubakurodake, Mt. Otenshodake, and Mt. Ariake. It takes 40 minutes by car from the center of Azumino City. You can enjoy natural hot springs in this unexplored area and experience the beautiful changes of nature through the seasons. It is 700 m to the trailhead of Mt. Tsubakurodake. You can use the hut as a starting and finishing point. There is also a bus stop to Hotaka Station at the hut.

Daitenso Hut

 

Open	June 14 to November 3, 2025
Rate	One night with breakfast and dinner – ¥15,000 (1 adult) ～ Reservation required
Facilities	Front desk, rooms (communal, private), shop, restaurant (lunch available), lounge, campsite (50 tents)

* Daitenso is located 10 minutes from the top of Mt. Otenshodake (2,922 m), which is the highest peak of Azumino City. It is built on the fork between Mt. Yari and Mt. Jonen, and is one of the most beautiful viewpoints in the Northern Alps. It is a quiet and comfortable mountain hut and there are many opportunities to see rock ptarmigan.

Hutte Nishidake Hut

 

Open	mid-July to mid-October 2025
Rate	One night with breakfast and dinner – ¥15,000 (1 adult) Reservation required
Facilities	Front desk, rooms (communal,), shop, restaurant (lunch available)

* Hutte Nishidake Hut, built in 1923, is a small mountain lodge located at 2,680 meters above sea level, about 15 minutes from the peak of Mt.NISHIDAKE. It is located between Mt.OTENSHOUDAKE and Mt.YARIGATAKE on the Alps Ginza Route, and offers a 360°panoramic view of Mt.JOUNENDAKE, the Hotaka mountain range, and Mt.YARIGATAKE.
The ENZANSO Group will operate the lodge from FY2025.

Hutte Oyari Hut

 

Open	June 28 to October 13, 2025
Rate	One night with breakfast and dinner – ¥14,000 (1 adult)  Reservation required
Facilities	Front desk, rooms (communal,), shop, restaurant (lunch available)

* Hutte Oyari is located 900 m from the summit of Mt. Yari, at the golden spot to view the spectacular mountain – ‘not too close’ and ‘not too far’.

Kassengoya Hut

 

Open	from late April to early in November , 2025
Facilities	shop, lounge, restaurant （lunch available）
Specialty	watermelon（Summer）　noodles（launch）

7. Access

8. JAPAN ALPIN LODGE ASSOCIATION PAMPLET

You can see the information of the mountain huts of the whole North Alps. Japan Alpin lodge Association web site http://kita-alps.yamagoya.gr.jp