Hotel Masyuu (月岡温泉ホテル摩周) in Tsukioka Onsen, Shibata-shi, Niigata (月岡温泉、新発田市、新潟). Many Japanese hotels have exceptional deals for guests who do not want to stay overnight. These are called hikaeiripuran (日帰りプラン): Hi is day.Kaeiri means return. Puran is the Japanese pronunciation of plan.
men's outdoor bath, called rotenburo (露天風呂) in Japanese.
website make me wish that I could be a woman for at least the time necessary to enjoy the new bath.
Hotel Masyuu has not paid for this recommendation. I write glowingly about my experience there because I had a wonderful time and my conversations with two members of the family-run hotel led me to believe that they are wholeheartedly striving to provide an exquisite experience for guests.
Another hot spring hotel in Tsukioka Onsen that I recommend is Murakamikan (村上館）. Both hot springs have greenish alkaline water that is very smooth.
Tsukioka Onsen is located in Shibata City, Niigata Prefecture.
If you are interested in learning Japanese for communicating about Japanese onsens, please read this onsen glossary. Readers who are interested in snowshoeing or mountain climbing in Niigata close to Tsukioka Onsen, might enjoy reading an article I wrote that was published in an international magazine for snowshoe athletes.