About

The Mine Akiyoshidai Geopark Ultra Marathon is a demanding endurance run set in Mine City, Yamaguchi Prefecture, across the sweeping landscapes of the UNESCO-recognized Akiyoshidai Geopark. The course showcases Japan’s largest karst plateau, leading runners past striking limestone scenery, vivid green ponds, and pockets of local mining heritage, creating a route that feels both rugged and distinctive. The atmosphere blends serious challenge with strong regional character, as aid stations feature Mine City specialties that give the race a memorable local flavor. For those who reach the finish, the event leaves a lasting impression with keepsakes crafted to reflect the area’s identity and the sense of accomplishment earned on this tough course.