The entire team crosses as quickly as possible a toxic swamp. The marshes include some islands (e.g. stone blocks) in knee deep water. With the help of boards (which are quite short) that must be overlaid cleverly, the team moves from one island to the other. Besides, the water may not be touched. The main target is that all participants cope with the crossing, no one is left behind. The challenge is to construct a creative solution for this task in which each team member gives a contribution.