The greatest attraction of Yapponpon no Yu is its unique spring quality. The sodium bicarbonate cold mineral spring is gentle on the skin, has a thick texture, and is known for leaving you feeling moisturized even after bathing. It is often called "beautiful skin bath" and is said to have a high moisturizing effect and to be effective in promoting blood circulation. In addition to the indoor bath in the large public bath, you can enjoy bathing in the rustic open-air bath while feeling nature on your skin in an open space. Bathing under the starry sky at night is also special.

In addition to the hot spring facilities, there are various relaxation facilities. In the authentic Finnish sauna, water is poured onto the fragrant stones to generate steam and negative ions, which promote sweating and enhance the relaxation effect. There is also a bedrock bath with flooring made of far-infrared ray-emitting barley stone and germanium, where you can warm up from the core of your body while listening to healing music. In addition, there are two family baths, which are perfect for those who want to enjoy the hot springs in a private space.

After your bath, you can enjoy seasonal meals made with local ingredients at the hotel restaurant, "Tsukiakari." The restaurant has both tatami seating and table seating, so you can relax in comfort. Enjoying a delicious meal after your bath will surely enhance the relaxation effect. Surrounded by the lush nature of Koga, Yapponpon no Yu is the perfect place to relieve your daily fatigue and refresh your mind and body.