A scenic open-air bath embraced by the forests of Lake Sagami, and the healing comfort of a highly alkaline beautifying hot spring
Kanagawa Sagamihara City
"Sagamiko Onsen Ururi" is a day-use hot spring facility rich in nature, located next to the outdoor resort Sagamiko MORI MORI in Sagamihara, Kanagawa Prefecture. Set on a hill overlooking the forests around Lake Sagami, it offers sweeping views of Mount Iwao from its open-air baths. Its greatest feature is the sodium bicarbonate spring, which boasts an extremely high alkaline level of pH 9.6. It is said to help gently remove dead skin cells for a beautifying effect, while its smooth, rich water provides deep relaxation for both body and mind. The sauna is a serious one, with auto löyly every 30 minutes, offering a blissful refreshment experience created by the synergy of forest bathing and hot spring bathing.
TypeNatural Hot Spring
A sodium bicarbonate spring with a remarkably high alkaline level of pH 9.6, among the highest in Japan. It is highly regarded as a beautifying spring that leaves the skin smooth, and its unique, silky texture is one of its defining characteristics. In the outdoor natural spring rock bath and the pot baths, you can fully enjoy its rich benefits while taking in the nature of Lake Sagami.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity18people
A full-fledged Finnish-style sauna where auto löyly is performed every 30 minutes. Water is automatically poured onto heated sauna stones, gently raising the humidity and temperature in the room and surrounding your entire body with powerful heat. In the spacious sauna room, you can enjoy invigorating perspiration while feeling the quiet of the forest. This is Ururi's main sauna.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath located right near the sauna room. The water is kept at a constant temperature, instantly cooling and tightening your body after the sauna and delivering a refreshing sense of renewal. The clean bath and the smooth circulation leading to outdoor-air bathing in the open-air area are also appealing.
Closed Days: Thursday
1634 Wakayanagi, Midori Ward, Sagamihara, Kanagawa 252-0175, Sagamiko MORI MORI
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
A scenic open-air bath embraced by the forests of Lake Sagami, and the healing comfort of a highly alkaline beautifying hot spring
Kanagawa Sagamihara City
"Sagamiko Onsen Ururi" is a day-use hot spring facility rich in nature, located next to the outdoor resort Sagamiko MORI MORI in Sagamihara, Kanagawa Prefecture. Set on a hill overlooking the forests around Lake Sagami, it offers sweeping views of Mount Iwao from its open-air baths. Its greatest feature is the sodium bicarbonate spring, which boasts an extremely high alkaline level of pH 9.6. It is said to help gently remove dead skin cells for a beautifying effect, while its smooth, rich water provides deep relaxation for both body and mind. The sauna is a serious one, with auto löyly every 30 minutes, offering a blissful refreshment experience created by the synergy of forest bathing and hot spring bathing.
TypeNatural Hot Spring
A sodium bicarbonate spring with a remarkably high alkaline level of pH 9.6, among the highest in Japan. It is highly regarded as a beautifying spring that leaves the skin smooth, and its unique, silky texture is one of its defining characteristics. In the outdoor natural spring rock bath and the pot baths, you can fully enjoy its rich benefits while taking in the nature of Lake Sagami.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity18people
A full-fledged Finnish-style sauna where auto löyly is performed every 30 minutes. Water is automatically poured onto heated sauna stones, gently raising the humidity and temperature in the room and surrounding your entire body with powerful heat. In the spacious sauna room, you can enjoy invigorating perspiration while feeling the quiet of the forest. This is Ururi's main sauna.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath located right near the sauna room. The water is kept at a constant temperature, instantly cooling and tightening your body after the sauna and delivering a refreshing sense of renewal. The clean bath and the smooth circulation leading to outdoor-air bathing in the open-air area are also appealing.
Closed Days: Thursday
1634 Wakayanagi, Midori Ward, Sagamihara, Kanagawa 252-0175, Sagamiko MORI MORI
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