Nasu Onsen-kyo are scattered all over the foot of Mt. Chausu, the main peak of the Nasu mountains. The origin of the Onsen-kyo is “Shikanoyu” discovered in the 7th century. The name “Shikanoyu” (deer’s bath) is derived from a legend that an injured deer soaked in the Onsen and healed her wound, and has referred to a therapeutic Onsen ever since. Historic visitors include Yoritomo Minamoto, a great samurai of 12th century, and Basho Matsuo, a famous poet of 17th century. Onsen styles vary from modern hotels in the highland to traditional wooden baths where you can see “Yumomi” (stirring very hot water with long wooden boards to cool it down).