Hotel Kikusuitei

284. Hotel Kikusuitei, Hamamatsu Visited for higaeri at 1100 yen. Listed hours are 12:00 to 20:00, but it may not be open or may operate in a different time slot (I got in on my second attempt). They give a stamp for the 60 Onsen of Shizuoka 24/25. Outdoor bath with a great view of the bay and forested mountains. Clear water, temperature 40-41. Indoor bath along two walls of the room. Clear water, temperature 40-41. Comfortable to breathe inside. Given the remote location and the unpredictability of the higaeri hours, it's a questionable spot. But during the daytime, the view from the bath would be really nice.