About Natural Hot Spring Yukaraku Atsugi
"Natural Hot Spring Yukaraku Atsugi" is a day-use hot spring facility in Atsugi, Kanagawa Prefecture, distinguished by its strong focus on sauna and cold plunge bath experiences. In the open-air area, it features a rare dome-shaped Finnish sauna, where you can bask head to toe in enveloping heat and steam from the automatic löyly. Its biggest draw is the 100% natural groundwater cold plunge bath, drawn up and used as free-flowing water without going through a chiller or filtration. With a stable water temperature of around 18°C throughout the year, and the smooth feel unique to groundwater, it gently yet refreshingly cools and tightens the body after sauna use. The facility also offers a wide range of bathing experiences, including a natural simple hot spring, a high-concentration carbonated spring, and a barley stone mist sauna you can enjoy while lying down.