At Wisconsin's Grand Geneva Resort & Spa, groups can participate in the adventurous Fun Mudder Challenge. Spread over a muddy five-mile course set with 30 obstacles, the activity tests strength, agility, speed, and mental stamina, and it incorporates running, climbing, jumping, crawling, and balancing. Groups can also tie in a charity component—for example, one "obstacle" can be to assemble care packages for people in need. The race ends with an on-property party with live music, food, and beer. The race lasts for 45 minutes to an hour and can accommodate groups of various sizes.
Photo: Courtesy of Grand Geneva Resort & Spa