Hoshi Onsen Chojukan

A secluded hot spring ryokan in the nature of the Joshinetsu Kogen National Park

The wooden buildings of this ryokan have been designated as a protected cultural property so is a great place to come if you are looking to experience the atmosphere of a very traditional ryokan. To protect the natural hot spring source daily monitoring is carried out, and the onsen is managed with consideration for sustainability. The ryokan also actively participates in efforts to sustain the biodiversity in the surrounding national park forest.

& Location

Hoshi Onsen Chojukan is a ryokan located in the Joshinetsu Kogen National Park. As you would expect it is surrounded by nature and its building made from wood looks like it belongs. Deep in the mountains, it is member of a special class of secluded hot springs that are rare in Japan, and it is well known for its natural springs that flow up from below you when you are in the baths. It is a wonderful place to enjoy an onsen directly from source out in the peace and tranquility of nature.


Chojukan is a participant in the Akaya Project which aims to restore biodiversity, and helps to protect the Akaya Forest in the national park that covers around ten thousand hectares. The roof of the main building of the ryokan is tiled with the bark from cedar trees. It is costly in both time and effort to maintain but the ryokan are committed to it for both the look of the building and its positive environmental impact. They also believe that it is a traditional skill that needs to be protected. The curation of the onsen spring is also paramount, and the data from daily monitoring is carefully studied to avoid any possible depletion caused by bad management practices.
Thanks to all the efforts to protect the environment it is a source of pride that guests can drink pure mountains spring water, and soothe away the aches of the day in the hot spring baths within the facility. Guests are encouraged to drink the famously good water here with supplies being placed in each room. Also to reduce the amount of plastic waste there is no water in plastic bottles for sale in the vending machines.

Local Community
& Culture

The buildings are made of wood and both the main building and the annex are registered cultural assets. Some of the guest rooms have had famous literary figures stay in them, and they still retain much of the atmosphere of olden times. You can relax by the open hearth on the left hand side as you enter the ryokan and feel like you have stepped back in time. Throughout the whole establishment there are many touches related to the traditions and history of the region where you can feel a connection with the past.
In many parts of the ryokan there are hangings, scrolls, and antiques on display, all of which date back to periods in the long history of this building.
There are strong links to the community with over eighty percent of the staff coming from the local area, and the ryokan also participating in local education activities.
The ingredients for the meals are sourced locally as much as possible, and many of the dishes on the menu are traditional, regional favorites. Guests can enjoy a glass of famous Japanese sake with their meals showcasing the best of the season, with sake from Gunma prefecture and also many from neighboring Niigata prefecture too.

A secluded hot spring ryokan in the nature of the Joshinetsu Kogen National Park


TIMELESS YUKIGUNI is an accommodation brand that provides modern travelers with a genuine experience based on the nature and culture of Yukiguni which has been passed down from previous generations, while considering the effects on the future local economy, society and environment. We strive to provide a wonderful stay through our accommodation, cuisine, and cultural experiences.

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Address650 Nagai, Minakami-machi, Tone-gun, Gunma


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