Sunayu

A natural outdoor hot spring using water that springs up from the bottom of the river and a sand bath. It's ranked as one of the top outdoor hot springs in the "Rotenburo Banzuke" guidebook. Unlike hot springs at hotels or facilities, you can enjoy the water in its natural state, giving you a fresh feeling. The sand bath is a mixed-gender bath, so it's mandatory to wear a towel while bathing. Women can also use a rental bathrobe that is available.

While the bathing times at inns and facilities are limited, the sand baths are open 24 hours a day! It's great to be able to get in the bath right away without worrying about the time. Enjoy the sand baths at your favorite time of day, whether it be morning, noon, or night. In addition, the use of sand baths is free! Feel free to enjoy the sand baths to your heart's content without worrying about the cost. Since local residents are cooperating, it's essential to follow proper etiquette when using the sand baths.

One of the highlights of Sunayu is its spring water. Sunayu's spring water is known as a low-osmotic alkaline hot spring with a strong alkaline property of pH 9 or higher. It is said to be effective for neuralgia, arthritis, and chronic digestive diseases. It is also recommended for those suffering from muscle pain, coldness, and fatigue, as it easily permeates the skin and warms the body from the core. Additionally, it has a beautifying effect, which is especially pleasing for women. Let's try to relax and enjoy the smoothness of our skin.

The area around Sunayu is surrounded by rivers and trees, making it a charming spot where you can enjoy nature while soaking in the hot springs. One of Sunayu's unique features is the open-air bath where you can enjoy the sound of the flowing river while soaking in the hot water. It's recommended to visit during your favorite season, as you can enjoy autumn leaves or snowscapes depending on the time of year. Additionally, Sunayu is located downstream from the Yahara Dam, so you can enjoy the magnificent view of the dam right in front of you while soaking in the hot springs. Let's relax and fully enjoy Sunayu along with the beautiful scenery!

There are three baths that you can enjoy at the sand bath! They are the "beauty bath," the "fertility bath," and the "longevity bath." Each bath has a different temperature, with the "longevity bath" being the hottest and the "beauty bath" and "fertility bath" being at a more comfortable, lukewarm temperature. You can choose to soak in your favorite bath or try all three! Why not soak in the bath that will give you the desired effect and spend a relaxing time?