A hot spring facility “Beppu Onsen Hoyo Land” where you can feel the nostalgia and history of the Showa era. This hot spring facility was once called Konya Jigoku and was recorded in the ancient topography of Bungo Province ‘Bungo Fudoki’ (Oita Prefecture). The source of the hot spring is a mixture of corrosive clay and underground water, which is a rare mud-water spring in Japan. The characteristic smell of the hot spring component (sulfur) is also unique. There are various types of baths such as gender-separated indoor baths (mud bath), colloid baths (milky white hot spring), waterfall baths, and steam baths. If you want to enjoy the mud bath, try the “Open-air large mineral mud bath” mixed bath that has a lot of freedom. (* Mixed bathing is separated by entrances and exits, with partitions.). As muddy water removes dirt and excess fat from skin, it leaves your skin moisturized and clear after bathing. It is a hot spring that makes women happy with their beautiful skin. Soap and shampoo cannot be used in all baths here to keep the source of the hot spring clean and protect the blessings of nature. Wash off the dirt on your body with hot water. The muddy hot spring, which is rare in Japan, is a place you should visit at least once when you come to Beppu.