Oita Prefecture, located on the northeastern coast of Kyushu island, is Japan's undisputed hot-spring capital, boasting more onsen sources and volume than anywhere else in the country. The region is home to Beppu, one of Asia's most famous spa towns with its dramatic steam vents, and Yufuin, a sophisticated mountain onsen resort framed by Mount Yufu. Beyond the thermal waters, Oita offers ancient Buddhist cliff carvings at Usuki, wild monkeys bathing in hot springs at Takasakiyama, dramatic gorges at Takachiho on its border, and some of Kyushu's finest local cuisine.
Top spas
Curated picks for treatments and day spas.
Yufuin Private Open-Air Onsen (multiple ryokan)
Beppu Sand Bath
Hotel Suginoi Aqua Beat
Wellness travel tips
Get the most from your wellness experience.
Book treatments in advance — popular slots fill up quickly during peak season.
Hydrate well before and after treatments, especially massages and saunas.
Communicate any allergies or skin sensitivities before treatments begin.