About Natural Hot Spring Kachofugetsu
"Natural Hot Spring Kachofugetsu" is a day-use onsen facility inside Saiboku in Hidaka City, Saitama Prefecture. Its sodium chloride spring, bubbling up from 2,000m underground, has excellent heat-retaining effects and is also renowned as a therapeutic spring. The sauna is a tower-style setup with far-infrared heaters, filling the entire body with comfortable heat and encouraging deep sweating. A standout feature is the cold plunge bath, which uses luxurious Chichibu underground spring water and has a mellow texture that clings gently to the skin, turning cool-down time into pure bliss. After bathing, you can enjoy Saiboku's proud brand pork dishes, making for a luxurious holiday where food and relaxation come together.