Obama Onsen Nagasaki Hotaru

Obama Onsen Nagasaki Hotaru is located in Obama, a small hot spring town on the western shore of the Shimabara Peninsula in Nagasaki Prefecture, facing Yatsushiro Sea, celebrated for the extraordinary sight of steam rising from the sea's surface where submarine volcanic vents warm the coastal waters — with some of Obama's springs exceeding 105°C, among the hottest in Japan. The chloride-rich thermal waters at Hotaru ryokan draw from this extraordinarily active coastal geothermal system, and Obama is famous for its 105-metre 'Footbath Promenade' — Asia's longest public ashiyu (foot bath) stretching along the seafront where locals and visitors soak their feet while gazing at active volcanic peaks across the bay. Obama's combination of super-heated coastal springs, dramatic volcanic scenery, and intimate community-oriented onsen culture makes it one of the most viscerally exciting hot spring towns in all of Japan.