An observatory large bath with panoramic views of Lake Hinuma and a beautiful-skin hot spring that feels like toner
Ibaraki Hokota City
"Hinuma Onsen Observatory Large Bath (Ikoi no Mura Hinuma)" is a hot spring facility in Hokota City, Ibaraki Prefecture. Its pride is the observatory large bath, where you can take in sweeping views of Lake Hinuma, and the beauty of the evening scenery is especially exceptional. The hot spring is known for its silky, smooth texture, often described as feeling like you are soaking in toner, and it is a beautiful-skin bath. It also features a sauna and a bubble bath, so you can refresh yourself while enjoying the view. This luxurious bathing experience is available not only for overnight guests, but also for day-use visitors.
TypeNatural Hot Spring
A natural hot spring that wells up along the shore of Lake Hinuma. It is a sodium-chloride cold mineral spring rich in ingredients that leave the skin smooth, and it is said that your skin feels silky after bathing. Along with the spectacular view from the observatory bath, you can enjoy an exceptional beautiful-skin bathing experience.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity8people
A sauna attached to the observatory large bath. The moderate heat gently envelops your body and slowly relieves everyday fatigue. Availability may vary depending on the day-use hours, so checking in advance is recommended.
Water QualityTap Water
Capacity1people
A cold plunge bath that is ideal for cooling down after the sauna. In the open atmosphere of the observatory bath, you can enjoy a refreshing contrast in temperature.
Closed Days: Tuesday
3604 Minowa, Hokota City, Ibaraki 311-1401
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
An observatory large bath with panoramic views of Lake Hinuma and a beautiful-skin hot spring that feels like toner
Ibaraki Hokota City
"Hinuma Onsen Observatory Large Bath (Ikoi no Mura Hinuma)" is a hot spring facility in Hokota City, Ibaraki Prefecture. Its pride is the observatory large bath, where you can take in sweeping views of Lake Hinuma, and the beauty of the evening scenery is especially exceptional. The hot spring is known for its silky, smooth texture, often described as feeling like you are soaking in toner, and it is a beautiful-skin bath. It also features a sauna and a bubble bath, so you can refresh yourself while enjoying the view. This luxurious bathing experience is available not only for overnight guests, but also for day-use visitors.
TypeNatural Hot Spring
A natural hot spring that wells up along the shore of Lake Hinuma. It is a sodium-chloride cold mineral spring rich in ingredients that leave the skin smooth, and it is said that your skin feels silky after bathing. Along with the spectacular view from the observatory bath, you can enjoy an exceptional beautiful-skin bathing experience.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity8people
A sauna attached to the observatory large bath. The moderate heat gently envelops your body and slowly relieves everyday fatigue. Availability may vary depending on the day-use hours, so checking in advance is recommended.
Water QualityTap Water
Capacity1people
A cold plunge bath that is ideal for cooling down after the sauna. In the open atmosphere of the observatory bath, you can enjoy a refreshing contrast in temperature.
Closed Days: Tuesday
3604 Minowa, Hokota City, Ibaraki 311-1401
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