Hot springs in Unzen
2
Springs
102°C
Avg temp
2
Public baths
0
Free entry
2
Near train
A highland onsen in Unzen-Amakusa National Park at around 700 meters elevation. The dramatic sulfurous steam vents known as the Jigoku, or Hell Grounds, are the defining feature: they bubble, hiss, and release clouds of white vapor across the landscape. The water here is strongly acidic and celebrated for its skin-healing properties.
Obama Onsen is a compact hot spring town on the Shimabara Peninsula in Nagasaki Prefecture, sitting at the base of Mount Unzen and looking out toward the Shimabara Straits. The waters here rank among the hottest in Japan, with temperatures reaching 105 degrees Celsius. Along the seafront, a 105-meter outdoor footbath stretches the full length of what is the longest such facility in the country, and it is open to all visitors at no cost.
About
About hot springs in Unzen
Volcanic mountain town in a national park, famous for sulfurous steam vents (Jigoku), highland hiking, and acidic hot springs.
Common questions
Frequently asked questions
Are there free hot springs in Unzen?▾
None of the currently listed springs in Unzen are free to visit.
What is the water temperature in Unzen hot springs?▾
Springs in Unzen average around 102°C, though individual springs vary. Check each listing for its specific range.
How do I get to Unzen?▾
From Fukuoka via Nagasaki Main Line, the gateway station is Isahaya, about 100 minutes total.
Are hot springs in Unzen suitable for first-time visitors?▾
Yes, Unzen has 2 public bathhouses, which are typically the most approachable option for first-time visitors.
What is the best time of year to visit Unzen for hot springs?▾
Spring through summer. Azaleas bloom May–June.