Unzen Onsen
Open by month
Open in January. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.
Open in February. No seasonal closure recorded.
Open in March. No seasonal closure recorded.
Open in April. No seasonal closure recorded.
Open in May — at its best. Miyama-kirishima azaleas (usually early–mid May); autumn leaves (usually late Oct – early Nov); rime ice on the trees in winter.
Open in June. No seasonal closure recorded.
Open in July. No seasonal closure recorded.
Open in August. No seasonal closure recorded.
Open in September. No seasonal closure recorded.
Open in October — at its best. Miyama-kirishima azaleas (usually early–mid May); autumn leaves (usually late Oct – early Nov); rime ice on the trees in winter.
Open in November — at its best. Miyama-kirishima azaleas (usually early–mid May); autumn leaves (usually late Oct – early Nov); rime ice on the trees in winter.
Open in December. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.
Checked against the official site on 2026-10-12.
A mountain onsen resort in Unzen-Amakusa National Park with milky sulphur springs and steaming Unzen Jigoku (about 30 vents) next to the inns. Day visitors can use public baths and hotel baths.
Unzen-Amakusa National Park (Japan's first national park, 1934)
Nearby
- Nita Pass (Mt. Unzen) ≈ 15 min by car
- Obama Onsen ≈ 20 min by car
- Shimabara Castle ≈ 30 min by car
- Shimeiso Spring Garden ≈ 30 min by car
- Shimabara Carp Streets and Samurai Houses ≈ 30 min by car
Travel times are rough estimates by car.
- Best time
- May, October, November — Miyama-kirishima azaleas (usually early–mid May); autumn leaves (usually late Oct – early Nov); rime ice on the trees in winter
- Getting there
- Shimatetsu bus from Isahaya Sta., about 1h20m (Isahaya is about 35 min by bus from Nagasaki Airport)
- Good to know
- First snow usually falls around early December; roads may be icy in winter.
- Time needed
- 4 h
Checked against the official Japanese website on 2026-10-12. Report outdated info