Hokkaido Otaru City
A top-floor spa where you can enjoy a sauna with a night view of the Otaru Canal and relax in a standing cold plunge bath 1.2 meters deep
"Otaru Granbell Hotel" is an accommodation-only hotel in Otaru, Hokkaido. From the large public bath on the top sixth floor, guests can take in sweeping views of Ishikari Bay and the Otaru Canal. The sauna room, which overlooks the night scenery through a large window, features an automatic löyly every 30 minutes and is filled with the pleasant aroma of birch. After the sauna, head to the 1.2-meter-deep cold plunge bath where you can stand and immerse yourself up to your shoulders. In the open-air relaxation space, where the sea breeze of Otaru flows through, you can fully enjoy an exceptional state of perfect relaxation.

A panoramic open-air bath on the hotel's top floor, offering sweeping views of Ishikari Bay's calm sea and Otaru's nostalgic streetscape. The infinity-style design, which makes the sea and the bath seem to flow into one another, creates an extraordinary sense of openness. Stretch out your arms and legs as you soak while feeling the pleasant sea breeze on your cheeks, and the fatigue of everyday life will gently melt away. At night, the illuminated night view of the Otaru Canal unfolds before you, allowing you to sink deeply into superb relaxation while savoring the romantic atmosphere of this harbor town.

A panoramic sauna on the top floor with sweeping views of Otaru Canal and Ishikari Bay. Once every 30 minutes, an automatic löyly system pours water onto the sauna stones, instantly raising the room's perceived temperature with soothing steam and heat. Genuine birch logs stand inside, filling the air with a sweet, fresh birch aroma. At night, you can enjoy a luxurious sweat session while gazing at the beautifully lit canal and its night scenery.

A standing cold plunge bath installed in the top-floor large public bath, boasting a depth of 1.2 meters. Guests can fully submerge their bodies up to the shoulders while standing, gently and evenly cooling down a body heated by the sauna. Right next to it, a spacious outdoor relaxation area is furnished with low chairs where you can stretch out and unwind, inviting you into an exceptional state of perfect relaxation while feeling Otaru's refreshing sea breeze and the sound of the waves.
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JAPAN'S FINEST ONSEN & SAUNA
The Finest Onsen & Sauna in Japan
64 SELECTIONS
Most of what we surveyed never even made it onto this site. This book is a further cut from what did. Our editor bathed in every onsen and sauna in it, and wrote only what they confirmed on the ground.