Origins of the Tsunagi Onsen
About 900 years ago, when samurai chief Minamoto no Yoshiie fought in the siege of Kuriyagawa, he discovered a hot spring in the spot where his camp was set up. That spot is at the southern side of the foot of the mountain where present-day Tsunagi Onsen sits. The water in Tsunagi Onsen is considered among the best when it comes to treatment of the skin. Its alkaline nature and the sillicic acid and sulfur contents act as natural moisturizers and make the skin smooth and silky.