Kosaka Town in Kazuno County, Akita Prefecture, is revitalizing the town by taking advantage of the tourist resources of Lake Towada. In recent years, the industry of extracting rare metals has also developed. Tourist attractions include the Oirase Stream Museum and the Oirase Spring Water Museum. The Oirase Stream Museum is the starting point for walks along the stream and offers bicycle rentals. The Oirase Spring Water Museum is a facility where you can observe the production of spring water. These two facilities are located next to each other. Oirase Stream Hot Springs, a special scenic spot, is surrounded by a variety of natural environments, allowing you to relax in the hot springs while enjoying the sounds. This is an area where you can enjoy a variety of scenery throughout the year.