瑞牆 (Mizugaki)

Bouldering in 瑞牆 (Mizugaki)

Mizugaki is a world-class bouldering destination in the heart of Chichibu Tama Kai National Park, where striking granite formations rise from the dense forest, creating a playground of technical and powerful climbing. The rock quality is outstanding, offering everything from sharp crimps to smooth slopers and delicate crack sequences. Climbers will find a diverse range of problems, with Kasameri known for its intricate face climbs, Plethora featuring some of the hardest test pieces in the area, and Bone Park providing quick roadside access to classic lines. The boulders are spread across a rugged, natural landscape, requiring a bit of exploration but rewarding climbers with breathtaking views and pristine conditions.

The best time to visit Mizugaki is in spring and autumn when crisp conditions provide the best friction. While summer can be humid, shaded sectors remain climbable, and winter, though cold, offers excellent grip for those prepared for alpine temperatures. The nearby Mizugaki campground serves as a basecamp for climbers, fostering a welcoming community atmosphere. With its legendary granite, stunning scenery, and deep climbing history, Mizugaki remains a must-visit for boulderers seeking some of Japan’s finest problems.