Trailwalker

Trailwalker or Oxfam Trailwalker and the related Trailtrekker are endurance walking events run across the world by Oxfam, in which teams of 4 competitors must complete a course of 100 kilometres (62 mi) in a set time limit - typically between 24 and 48 hours. The routes may be point-to-point or follow a circular route returning to the start.