Kelli Yokom (left), 13, of Redford, Michigan and her friend Stephanie Janssen (right), 9, also of Redford, play with hundreds of other children in a giant lake of mud at the annual Mud Day event July 7, 2009 in Westland, Michigan. The event is sponsored by the Wayne County Parks and Recreation Department and the mud hole is made with approximately 200 tons of topsoil and 20,000 gallons of water. [CFP]

Kelli Yokum, 13, of Redford, Michigan plays with hundreds of children in a giant lake of mud at the annual Mud Day event July 7, 2009 in Westland, Michigan. The event is sponsored by the Wayne County Parks and Recreation Department and the mud hole is made with approximately 200 tons of topsoil and 20,000 gallons of water. [CFP]