The hot springs in Hiroshima are some of the biggest natural attractions in the area. These hold special historic significance, since many of them date more than 1000 years old. The Yu-no-yama Hot Spring, discovered roughly 1170 years ago, is a traditional hot spring Hiroshima's territorial lord, Asano. Currently, a multipurpose spring called the KurhausYunoyama can be found at the spot, making use of the natural hot spring. Another notable and historic hot spring is the Yuki Hot Spring, discovered 1500 years ago. This hot spring has water with the highest radium level and has been designated by the National Recreational Hot Spring Resort of Ministry of Welfare.