Yes, you could for 1000 yens. Last time while we were staying at Nisshinkan we also planned to visit Manza Prince Hotel's Rotenburo, unfortunately did not have enough time. Nisshinkan Daytime Hours: 10:00 to 17:00 (entry until 16:30) Daytime Admission: 1000 yen Overnight Stay: From 7,000 yen per person including 2 meals The indoor and outdoor bath areas of Nisshinkan are located in separate buildings a short walk away from each other. The serene outdoor bath offers nice mountain scenery. The indoor bath area has a beautiful wooden interior equipped with several pools and fan shaped windows. All facilities are gender separated. Manza Prince Hotel Daytime Hours: 11:00 to 18:00 (entry until 17:00) Daytime Admission: 1200 yen Overnight Stay: From 10,000 yen per person including 2 meals The outdoor baths at Manza Prince Hotel offer great, unobstructed views of the surrounding mountain landscape. There are two open air baths for each gender and one mixed gender bath in addition to gender separated indoor bath areas. Manza Kogen Hotel Daytime Hours: 11:00 to 18:00 (entry until 17:00) Daytime Admission: 1200 yen Overnight Stay: From 7,000 yen per person including 2 meals Manza Kogen Hotel offers a large outdoor bath facility with seven mixed gender pools and one female-only pool. The outdoor bath area is called Sekitei Rotenburo ("Rock Garden Open Air Bath") with reference to its baths made of rocks and having a rocky decor. The hotel also has indoor bathing facilities. Manzatei Hours: 11:30 to 18:00 (entry until 17:00) Closed: No closing days Admission: 1000 yen Overnight Stay: From 8,000 yen per person including 2 meals The baths at the Manzatei have an elegant wooden interior design. There is one indoor and one outdoor bath for each gender