Fully OK
Hotel Goryukan
白馬八方温泉 ホテル五龍館Main bath: OKOpen-air bath: OKSauna: OK
Official site · checked 5 Nov 2026 · see the wording Rooms from¥14,520
Details 39 places checked · 2 say yes (1 without conditions) · 34 unconfirmed · last check 5 Nov 2026
Few inns here write anything down, but the ones that do are unusually precise — one hotel names the exact cover-sticker size it will accept, another says yes with no conditions at all. Several of the small ryokan sites still fail on https or are Shift-JIS only, so their policy pages are hard to reach even when they exist.