About Hyakukannon Onsen
"Hyakukannon Onsen" is a natural hot spring facility in Kuki City, Saitama Prefecture, known for its impressive abundance of water and rich mineral content. It offers a luxurious 57°C source spring that wells up from 1,200 m underground as a fully free-flowing spring with no added water or heating. The sodium chloride strong saline spring known as the "beautifying bath" is rich in metaboric acid and is said to be especially effective for disinfection and skin beautification. The saunas are fully equipped in both the "Bosatsu no Yu" and "Amida no Yu" areas, which alternate between men and women every two weeks, allowing you to work up a good sweat in a freshly renovated, spotless space. With a cold plunge bath fed by natural groundwater, a high-concentration carbonated spring using the source water, and various baths including a "hot bath" over 45°C, this is a famous hot spring spot with a wide variety of baths that even onsen enthusiasts will appreciate.