Two skin-beautifying spring sources and an authentic sauna, embraced by the nature of Mount Kagobou
Miyagi Osaki City
Kagobou Onsen Sakuranoyu is a day-use bathing facility surrounded by lush nature at the foot of Mount Kagobou in Osaki City, Miyagi Prefecture. Its large open-air bath, among the biggest in the prefecture, lets you enjoy two different on-site spring sources with distinct qualities, and it is well known for its skin-beautifying effects and excellent heat retention. The sauna uses an authentic Finnish style, allowing you to work up a good sweat in a calm, gently heated space. The cold plunge bath changes temperature according to the outside air, and in winter it can even become an icy bath in the single digits, making its cool refreshment appealing in every season. The spacious open-air area is perfect for outdoor air bathing, where you can spend a blissful moment feeling the breeze of each season.
TypeNatural Hot Spring
A natural hot spring believed to originate from ancient seawater, rich in skin-beautifying ingredients. The sodium-calcium chloride spring is gentle on the skin, and after bathing you can feel your skin becoming smooth and well conditioned. Its abundant minerals seep into the body and gently ease everyday fatigue.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A dry sauna that pursues the style of Finland. The interior is a calm space wrapped in the warmth of wood, and its pleasant heat gently warms your whole body. Aroma löyly events are also held regularly, letting you enjoy a refreshing sweat experience with rich fragrance and steam. The spacious seating area is another attraction, allowing you to relax comfortably while you sweat.
Water QualityTap Water
Capacity4people
A refreshing cold plunge bath located right near the sauna room. It has a solid depth and quickly cools down your heated body after sauna use, delivering an invigorating cooldown.
Closed Days: None
989-4305 Miyagi Prefecture, Osaki City, Tajiri Oshio Yatsusawa 37-1
Gender Access
Mixed Gender
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
Two skin-beautifying spring sources and an authentic sauna, embraced by the nature of Mount Kagobou
Miyagi Osaki City
Kagobou Onsen Sakuranoyu is a day-use bathing facility surrounded by lush nature at the foot of Mount Kagobou in Osaki City, Miyagi Prefecture. Its large open-air bath, among the biggest in the prefecture, lets you enjoy two different on-site spring sources with distinct qualities, and it is well known for its skin-beautifying effects and excellent heat retention. The sauna uses an authentic Finnish style, allowing you to work up a good sweat in a calm, gently heated space. The cold plunge bath changes temperature according to the outside air, and in winter it can even become an icy bath in the single digits, making its cool refreshment appealing in every season. The spacious open-air area is perfect for outdoor air bathing, where you can spend a blissful moment feeling the breeze of each season.
TypeNatural Hot Spring
A natural hot spring believed to originate from ancient seawater, rich in skin-beautifying ingredients. The sodium-calcium chloride spring is gentle on the skin, and after bathing you can feel your skin becoming smooth and well conditioned. Its abundant minerals seep into the body and gently ease everyday fatigue.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity20people
A dry sauna that pursues the style of Finland. The interior is a calm space wrapped in the warmth of wood, and its pleasant heat gently warms your whole body. Aroma löyly events are also held regularly, letting you enjoy a refreshing sweat experience with rich fragrance and steam. The spacious seating area is another attraction, allowing you to relax comfortably while you sweat.
Water QualityTap Water
Capacity4people
A refreshing cold plunge bath located right near the sauna room. It has a solid depth and quickly cools down your heated body after sauna use, delivering an invigorating cooldown.
Closed Days: None
989-4305 Miyagi Prefecture, Osaki City, Tajiri Oshio Yatsusawa 37-1
Gender Access
Mixed Gender
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