About Minuma Natural Hot Spring Koharubiyori
"Minuma Natural Hot Spring Koharubiyori" is a day-trip hot spring facility located in Minuma Ward, Saitama City, with a serene Japanese atmosphere. It offers sodium-chloride strong saline spring water gushing from 1,500m underground as an unheated natural spring, with no added water or heating at all. The thick, brownish hot water can be enjoyed at a wide range of temperatures, from pleasantly lukewarm baths at body-neutral temperature to hotter baths. The sauna is a four-tier tower-style dry sauna, where gentle far-infrared heat wraps the entire body and encourages deep sweating. A pristine cold plunge bath fed by underground water and outdoor bathing in a Japanese garden that shows the changing seasons promise a blissful moment away from everyday life.