Terrain Racing, Flagstaff

For once, it’s OK to play in the mud: in each of the Terrain Mud Runs, racers compete in a challenging race through the muck of a 3- or 5-mile obstacle course. Before the race starts, you’ll store a clean change of clothes in a gear tent. Put on a race T-shirt (provided to each participant), affix a timing computer chip to your shoe, and then head to the starting line to race against the others, climbing on monkey bars, crawling through tubes, scaling cargo nets, and dodging soap salesmen. At the end of the course, you’ll head to the terrain village for an afterparty.

The awards don’t end there: the organizers hand out more specialized awards, such as fastest man and fastest woman in different age groups, rewards for best-dressed teams, and an award for the largest team. You’ll also get to enjoy beer, food, and music with family, friends, and other racers.