The reserved evening slot runs 18:00 to 20:30, but a lunchtime visit can also be arranged on request.
Day use is only offered as the reserved engagement or formal meeting plan (Yuino Kaomiawase, 結納・顔合わせ), for parties of 10 or more. It's 25,300 yen per person, tax included, plus a 10% service charge. There's no general walk-in day bathing plan.
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
A private, reservable sauna beside the storehouse (お蔵) building; several guest rooms also have their own steam sauna.
Private bath available for day-use visitors or hotel guests to reserve
Free, no-reservation-needed private rotenburo carved from Zao rock, plus a separate reservable family bath (45 min slots).
Private onsen bath in guest rooms, for overnight guests only
Most room types (B through F) advertise their own semi-open-air or open-air onsen bath in the room.
Shared bathing area for all genders
Welcomes children and families
There is a dedicated baby-friendly plan (赤ちゃんプラン) and child room rates for ages 3 through elementary school.
Restaurant or dining open to visitors (not just hotel meal plans)
Day-visitors (not only overnight guests) can book a kaiseki dining + onsen plan; there is also a counter-dining venue and a private dining room for guests.
Shower, wash stations, soap and shampoo provided
Relaxation space for after bathing
Meigetsuso is a ryokan in Kaminoyama Onsen (上山温泉) with a lot of ways to bathe. The separate men's and women's indoor baths are lined in fragrant wood with granite tubs, filled with sulfur water that's traditionally said to be good for cuts and bruises, and each opens straight onto its own outdoor bath. There's also a free rotenburo carved out of a block of Zao rock, no reservation needed, with a view of the Zao mountains, plus a reservable family bath and a small onsen-fed private sauna next to the storehouse. Most guest rooms have their own semi-open-air or open-air bath too, and a few even come with a steam sauna. The rest of the inn keeps the same unhurried, homey feel. Rooms are individually decorated and built like small detached cottages, dinner is a seasonal kaiseki course built around local Yamagata ingredients, and the grounds hold an art gallery in a Taisho-era storehouse moved here from Akita, a library with a manga corner, a fireside lounge, and a yoga room in the forest next door. Meigetsuso is marking 30 years at this Hayama site, and guests tend to describe it less as a showy luxury inn and more as a warm countryside retreat.
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Last updated July 17, 2026