Romp in the swamp

A competitor get dirtier than expected while low crawling through an obstacle during the Swamp Romp, a five-mile run through the mud along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay, Feb. 25, 2012. This unique anuual race, known as the "Dirtiest race in Hawaii," takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares)

Romp in the swamp

Tech. Sgt. Chris Gilmore, 647th Logistics Readiness Squadron, Joint Base Pearl Harbor-Hickam, Hawaii, low crawls through an obstacle during the Swamp Romp, a five-mile run through the mud along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay, Feb. 25, 2012. This unique anuual race, known as the "Dirtiest race in Hawaii," takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares)

Romp in the swamp

Teams lock arms as they run the last 100 yards of the Swamp Romp, a five-mile run through the mud along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay Feb. 25, 2012. This unique run, known as the "Dirtiest race in Hawaii" takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares)

Romp in the swamp

Teams lock arms as they run the last 100 yards of the Swamp Romp, a five-mile run through the mud along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay Feb. 25, 2012. This unique run, known as the "Dirtiest race in Hawaii" takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares)

Romp in the swamp

A competitor climbs the final obstacle of the Swamp Romp bare-footed because the mud claimed them along the way during the five-mile run along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay, Feb. 25, 2012. This unique run, known as the "Dirtiest race in Hawaii" takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares)

Romp in the swamp

The muddy waters of the Nu'upia ponds was just one of many obstacles of the Swamp Romp, a five-mile run through the mud along the Nu'upia ponds and down the Fort Hase Beach at Marine Corps Base Hawaii - Kaneohe Bay, Feb. 25, 2012. This unique run, known as the "Dirtiest race in Hawaii" takes teams over and under the challenge-laden course that included unlimited mud, low crawling, jumping, climbing and falling in the mud. (U.S. Air Force photo/Staff Sgt. Mike Meares))