To air when touches to reddish-brown color the changes from spring quality "Gold's Hot Water" also is called, domestic top class's carbonic acid hydrogen the contains. After bathing the skin the becomes smooth because "Beautiful Skin's Hot Water" "Refreshing's Hot Water" as, island's people and/or Rishiri Island the visit many's to people is popular. High temperature and low temperature two types of sauna also there are. Appropriate temperature the in order to maintain heating the do, efficacy maintenance and hot spring resource maintenance and hygiene management for, free-flowing source water and circulation filtration the are used in combination. To Sea of Japan sinking evening sun and/or full sky's starry sky the view open-air bath also is popular.