An Open-Air Bath with a Superb View

Mamashita Onsen offers a variety of bathing experiences with fully equipped facilities, including a sauna, indoor baths, and a unique sand bath.
The highlight is the "rotenburo" (open-air bath), where you can soak while gazing at a spectacular view.
The scenery includes the nearby Toriga-shima Islet, with the islands of Shikinejima and Kozushima visible across the sea.
For a truly unique Niijima experience, try the sand bath, where you are comfortably buried in naturally heated, geothermal white sand from Habushiura Beach.