Kamenoi Hotel Aso

Three Deluxe Rooms at Kamenoi Hotel Aso pair a private Auroom Cala Glass sauna with an open-air hot spring bath and a terrace facing Mount Aso.

Kamenoi Hotel Aso sits at the foot of the Aso mountains in Kumamoto, and every room looks out on Aso Gogaku, the five peaks of Mount Aso. The hotel reopened after a full renovation in October 2025 with three new Deluxe Rooms built around bathing: each one has its own Auroom Cala Glass sauna, an open-air bath filled with hot spring water straight from the source, and a terrace with reclining chairs facing the mountains. The sauna heats to as high as 230°F and seats two adults with room to spare. Sauna, hot spring and terrace in one room The Deluxe Room with Open-Air Bath (with Sauna) covers about 936 square feet and sleeps up to five.

Deluxe Room in-room sauna: electric heat, seats about 2. An Auroom Cala Glass sauna with a glass front, inside each of the three Deluxe Rooms with Open-Air Bath. Listed amenities: Cold plunge, Cool-down deck, Hot pool / hydrotherapy, Steam room.

Listing type: Hotel. Access: Hotel guests. Listed capacity: Each of the three sauna rooms sleeps up to 5 guests; the in-room sauna seats 2 adults comfortably. Cold plunge: A cold bath of Aso spring water in the men's public bath, beside its dry sauna. Hours: Check-in is from 3 PM and check-out is by 10 AM. The in-room sauna is yours for the whole stay. Book the Deluxe Room with Open-Air Bath (with Sauna) on the hotel's own booking site, linked from its room page. The private sauna comes with that room type only. SaunaShare records this listing as editorially reviewed by SaunaShare. A listing label describes where the information came from, not the quality of the sauna. Listing details were last reviewed on November 14, 2026.

Rates and availability are set by the host. SaunaShare links to the booking page and does not handle the reservation.

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