"Tosa Ryu Onsen Sanyoso" is a natural hot spring inn located on the Yokonami Peninsula in Tosa City, Kochi Prefecture, and is also known as an important stop on the Shikoku pilgrimage. Its privately sourced spring water, which wells up from deep underground, is a chloride spring with one of the highest mineral concentrations in Kochi Prefecture. As its name suggests, it features cloudy water that shines with a golden hue. Also called the hot spring of warmth, it has excellent heat-retaining properties, warming you from the core and helping you stay warm long after you get out. The open-air tub baths with free-flowing spring water let you enjoy the luxury of having fresh hot spring water all to yourself. There is also a free foot bath at the entrance overlooking the sea, making it a relaxing place not only for overnight guests but also for pilgrims and sightseeing visitors.