Mount Shirane

Mount Shirane (白根山, Shiranesan), also known as Kusatsu-Shirane, is a stunning group of volcanic peaks located just outside Kusatsu Onsen. The mountain offers a variety of experiences throughout the year, making it a year-round destination. In spring and summer, visitors can enjoy scenic hiking trails that take them through lush landscapes and offer breathtaking views. In autumn, the mountain transforms into a vibrant display of red, orange, and yellow leaves, making it a popular spot for fall foliage enthusiasts. During the snowy winter months, Mount Shirane becomes a hub for skiing, drawing winter sports enthusiasts from all over.

From mid-April to early November, the hiking trails around Mount Shirane are accessible, with routes starting from Kusatsu’s town center or the Shirane Resthouse, which is located closer to the summit. One of the most popular and easiest walks is a short 10-minute hike from the resthouse to the Yugama Crater Lake. This stunning, baby-blue lake is rich in sulfur and offers visitors a unique, otherworldly sight, framed by rugged mountain scenery. The lake’s striking color and the surrounding natural beauty make it a perfect spot for photography, while the fresh mountain air adds to the rejuvenating experience.