Kumamoto Tamana City
Natural hot springs with water flowing directly from the source, the latest saunas, and a luxurious all-inclusive retreat
"Onjuku Satsuki" is an all-inclusive onsen ryokan in Tamana City, Kumamoto Prefecture. It will rebrand and reopen in April 2026 from "Satsuki Besso," retaining its vast 2,000-tsubo garden and in-room baths with water flowing directly from the source, while adding the latest sauna facilities. It features a barrel sauna installed in the open-air area, a stylish DICE sauna, and a rock bath, allowing guests to enjoy the historic Tamana Onsen and a modern detox experience at the same time. With food and drinks included for free under the all-inclusive style, it offers a blissful stay to the fullest.
Tamana Onsen boasts more than 1,300 years of history. The entire facility offers 100% natural spring water flowing directly from the source, with no dilution, heating, or reheating anywhere in the building. Its gently alkaline water has long been loved as a beauty hot spring and leaves the skin feeling soft and moisturized. From the infinity bath, you can enjoy a liberating soak while taking in the greenery of the garden and the openness of the sky.
A barrel sauna installed in the open-air area, filled with the warmth of wood. Its cylindrical structure allows heat and steam to circulate efficiently, warming the body gently yet thoroughly. The sauna experience, surrounded by the natural beauty of the garden, is exceptional. With self-löyly, you can adjust the conditions to your liking and sink into deep relaxation.
A newly installed DICE Sauna with a stylish design. Compact yet pleasantly intense in its heat, it offers a space where you can focus fully on enjoying the sauna. Equipped with the latest facilities, it provides a detox experience surrounded by the rich natural scenery of Tamana Onsen. During the outdoor cooling break after the sauna, you can enjoy the changing seasons of the garden while savoring a blissful totonou state.
Open Year-Round
