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At the bottom of the caldera of Mount Nanashigure, nestled in a vast plain, stands a red-roofed mountain lodge ? this is Nanashigure Sanso, a lodging facility long beloved by mountain climbers and nature lovers. This is
a miniature garden created by the nature of Nanashigure. It is a secluded inn with no houses within a 7km radius. As a result, there is little light pollution from the outside world, and it is famous as the "Star-Falling Mountain Lodge," where you can observe some of the best starry skies in Japan. The lodge regularly hosts astronomical observation sessions, "Star-Gazing Sessions," with the director of an observatory as the lecturer.
Owner Tachibana deeply loves the scenery of Nanashigure. Another passion of his is "outdoor saunas." Owner Tachibana says, "At Nanashigure, you can experience the best sauna in Japan for stargazing."
In addition, you can enjoy two saunas here: "Sauna Ihatov," a wood-fired sauna that utilizes a traditional Japanese house and respects Iwate's culture, and a tent sauna that reaches a maximum temperature of 120 degrees Celsius, where you can gaze at the sky. The owner is such a sauna enthusiast that he even hosts a sauna-themed radio show, so even sauna beginners can enjoy the sauna with peace of mind.
The attached cafe, "Chai Hana," soothes hikers and those seeking a secluded retreat. It is
also popular with workation users, hikers, and long-term guests, making it an excellent place for extended stays to reflect and introspect. This is a place you should visit at least once in your life.

Loyly: A Finnish sauna bathing method originating from the birthplace of saunas, where aromatic water is poured onto sauna stones heated by a stove to generate steam. This steam increases the humidity and perceived temperature inside the sauna, promoting sweating.