Description of the Nature Trailer Problem

For those of you who are following the team but are not aware of the problem the kids have solved I am including a short description here:

The Problem
The team's problem is to design, build and drive a human-powered vehicle that travels along with a Camper on a camping trip. When the vehicle and Camper arrive at the Campground, the vehicle leaves the Camper behind and travels on a Nature Trail. On the Nature Trail, the vehicle overcomes an obstacle, cleans up the environment, encounters wildlife,and is repaired. The performance will also include a Campground Character that relates the vehicle's experiences from the Campground.
The creative emphases of the problem are on the vehicle, the Camper's change of appearance, the Nature Trail, the circumstances the vehicle encounters on the Nature Trail and how it overcomes them, and the Campground Character. The Spirit of the Problem is for the team to design, build and drive a human-powered vehicle that travels with a Camper and goes on a camping trip. At the Campground, the vehicle leaves the Camper, which changes appearance, and travels on a Nature Trail, where it encounters four different circumstances. A Campground Character at the Campground relates the vehicle's experiences to others.