Noboribetsu Onsen is a famous hot spring resort located in Hokkaido, Japan. Known for its rich mineral waters, the area features various types of onsen, each offering unique therapeutic benefits. The hot springs are fed by volcanic activity from the nearby Noboribetsu Volcano, making the water rich in minerals like sulfur, sodium, and calcium. Visitors can enjoy a range of outdoor and indoor baths, as well as scenic views of the surrounding nature. The resort is also home to the Hell Valley (Jigokudani), where visitors can see steam vents and sulfurous streams, providing a glimpse into the volcanic activity that creates these natural hot springs.