 One thing Marines are afraid of is getting dirty as demonstrated by the 18th annual Swamp Rock aboard Marine Corps Base Hawaii For over 2,400 service members families and retired military gathered for a scenic one-mile course. There's sand mud and obstacles teams of six ran the course somewhere in traditional running gear and Others opting for more creative apparel At the finish the top three teams received congratulations and medals and all were given a good washing Followed by live entertainment Reporting from Washington, I'm Lance Corporal John Tucker