Fully OK
HOTEL & SPA Century Marina Hakodate
センチュリーマリーナ函館Main bath: OKOpen-air bath: OK
Official site · checked 9 Nov 2026 · see the wording Rooms from¥15,400
Details 75 places checked · 2 say yes (1 without conditions) · 65 unconfirmed · last check 9 Nov 2026
Yunokawa is a seventeen-inn hot-spring quarter five minutes from Hakodate airport, with a second cluster of spring-fed hotels down on the bay. Three of the larger houses refuse in writing and one points tattooed guests at its rooftop rental open-air bath; the rest, including the most expensive inns in the quarter, publish nothing, so this is an area where asking ahead pays off.