大分県 · Kyushu Region
Oita Hidden Gems
Japan's hot-spring capital — more thermal water and more sources than any other prefecture, from steaming resort towns to quiet mountain baths.
2 spots
Climate & Best Season
Mild and rainy; the Kuju highlands are cooler with light snow. Onsen are best in autumn and winter.
Famous For (Food)
- Toriten (chicken tempura)
- Seki mackerel
- Dango-jiru
- Bungo beef
Signature Sights
- Beppu 'hells' and baths
- Yufuin
- Usa Jingu
- Kunisaki Peninsula stone Buddhas
Oita· Taketa
Oka Castle Ruins — Castleless Castle in the Sky
Oka Castle (岡城) was built on a 100-meter-tall volcanic plateau in 1594, defended by sheer cliffs on three sides and acce…
castle ruinscloud seastone walls+2
Updated Jul 2026
Oita· Taketa
Nagayu Onsen — Carbonated Hot Spring Soak
Nagayu Onsen (長湯温泉) in Taketa City is one of Japan's few naturally carbonated hot springs (炭酸泉, tansan-sen). The water c…
Nagayucarbonated onsentansan+2
Updated Jul 2026