Have some clean fun getting dirty by completing the challenging course this May at the Dirty Myrtle Mud Run. The three-mile race is a great mix of endurance and fun. Obstacles include the likes of a barbed wire ditch crawl, barrel rolls, hills, hay bales, a mud crawl and more. Waterbridge Resort, 473 Starlit Way. Saturday, 9 a.m. Visit website for registration information. (843) 267-7443, www.myrtlebeachfestivalpromotions.com