Obama Onsen
小浜温泉
A seaside onsen with spring water reaching 105°C, home to Japan’s longest foot bath at 105 meters, where you can soak your feet while watching the sunset over Mikan Bay.
Obama Onsen lies on the west coast of the Shimabara Peninsula, at the foot of Mount Unzen, beside Mikan Bay. The source water reaches about 105°C, with roughly 15,000 tons flowing out each day. It ranks among Japan’s highest heat outputs, and steam rises along the seafront. The 105-meter “Netsujō Ashiyu 105” foot bath, completed in 2010 and matching the spring’s temperature, is the longest in Japan. It is free to use. There is also a “steaming kama,” where you can steam eggs and vegetables with onsen steam. This is also a famous spot for watching the sunset over Mikan Bay. Obama Champon, a noodle dish in a shrimp and oyster broth, is the local specialty. From Nagasaki Station, the bus takes about 1 hour and 10 minutes, and Unzen Onsen is about 20 minutes away by car.
Opening hours
Foot bath approx. 10:00–19:00 (until 18:00 in winter)
Nearby sights
- Unzen Jigoku & Unzen Onsen
- Nita Pass & Unzen Ropeway
- Mount Fugen
- Hara Castle Ruins
- Shimabara Samurai Residences
- Mt. Unzen Disaster Memorial Hall
- Shimabara Castle
- Shimabara Carp Streets & Shimeiso Garden