A mud run is an obstacle course race that combines running with various physical challenges, often set in muddy terrain. Participants navigate through a series of obstacles, such as walls, tunnels, and water pits, while getting covered in mud. These events are designed for people of all fitness levels and typically encourage teamwork and camaraderie. Mud runs are popular for their fun and adventurous atmosphere, often featuring music, food, and community spirit. Many events, like the Tough Mudder or Spartan Race, also support charitable causes, making them a great way to stay active while contributing to the community.