比田温泉 is a hot spring town in Shimane, Japan. The water leaves the ground at 27.3°C, cool enough that the baths here are usually reheated. Officially the water is classed as simple spring and radioactive spring. 1 inns take visitors here.
Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.
Contains trace radon that leaves the water quickly. Also called radium or radon springs.
Figures from the town's Japanese Wikipedia article.
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.