Enjoy an exceptional pH 9.6 beautifying bath and an authentic sauna with self-löyly
Hokkaido Makubetsu Town
"Tokachi Naumann Onsen Hotel Arco" is an onsen lodging facility in Churui, Makubetsu Town, Hokkaido. Its simple hot spring, boasting a highly alkaline pH of 9.6, is renowned as a beautifying bath that washes away impurities and leaves the skin smooth. The sauna is a serious, authentic setup with self-löyly, allowing you to work up a good sweat in the quiet embrace of Tokachi's abundant nature. The cold plunge bath comes in two different temperatures, so you can cool down to suit your preference. From the open-air bath, you can gaze up at Tokachi's clear sky and refresh both body and mind with an invigorating outdoor rest.
TypeNatural Hot Spring
An alkaline simple hot spring with a pH of 9.6. Rich in sodium ions and bicarbonate ions, it helps soften dead skin cells and leaves the skin smooth. Colorless and clear with little刺激, it has a gentle feel that can be enjoyed safely by everyone from children to older adults.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A genuine Finnish-style sauna where self-löyly is allowed. By pouring water over the sauna stones, pleasant steam and heat fill the room, and you can freely adjust the perceived temperature. In a calm space wrapped in gentle lighting and the warmth of wood, you can savor your own private sauna time.
Water QualityTap Water
Capacity2people
A compact round cold plunge bath characterized by its crisp, refreshing water temperature. It tightens the body heated by the sauna and provides a refreshing cooldown. Designed for a small number of users, it lets you quietly face the water.
Water Qualitywell
Capacity5people
A spacious cold plunge bath with a pleasantly cool temperature of around 20°C, ideal for soaking at leisure. Made with mineral spring water, it feels gentle on the skin and allows you to cool down without putting strain on your body. Recommended for those who are not fond of very cold baths or who want to stay in longer.
Closed Days: None
384-1 Shirogane-cho, Churui, Makubetsu Town, Nakagawa District, Hokkaido 089-1701
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
Enjoy an exceptional pH 9.6 beautifying bath and an authentic sauna with self-löyly
Hokkaido Makubetsu Town
"Tokachi Naumann Onsen Hotel Arco" is an onsen lodging facility in Churui, Makubetsu Town, Hokkaido. Its simple hot spring, boasting a highly alkaline pH of 9.6, is renowned as a beautifying bath that washes away impurities and leaves the skin smooth. The sauna is a serious, authentic setup with self-löyly, allowing you to work up a good sweat in the quiet embrace of Tokachi's abundant nature. The cold plunge bath comes in two different temperatures, so you can cool down to suit your preference. From the open-air bath, you can gaze up at Tokachi's clear sky and refresh both body and mind with an invigorating outdoor rest.
TypeNatural Hot Spring
An alkaline simple hot spring with a pH of 9.6. Rich in sodium ions and bicarbonate ions, it helps soften dead skin cells and leaves the skin smooth. Colorless and clear with little刺激, it has a gentle feel that can be enjoyed safely by everyone from children to older adults.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A genuine Finnish-style sauna where self-löyly is allowed. By pouring water over the sauna stones, pleasant steam and heat fill the room, and you can freely adjust the perceived temperature. In a calm space wrapped in gentle lighting and the warmth of wood, you can savor your own private sauna time.
Water QualityTap Water
Capacity2people
A compact round cold plunge bath characterized by its crisp, refreshing water temperature. It tightens the body heated by the sauna and provides a refreshing cooldown. Designed for a small number of users, it lets you quietly face the water.
Water Qualitywell
Capacity5people
A spacious cold plunge bath with a pleasantly cool temperature of around 20°C, ideal for soaking at leisure. Made with mineral spring water, it feels gentle on the skin and allows you to cool down without putting strain on your body. Recommended for those who are not fond of very cold baths or who want to stay in longer.
Closed Days: None
384-1 Shirogane-cho, Churui, Makubetsu Town, Nakagawa District, Hokkaido 089-1701
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more