You will need: water bottles, stoves or cookers, pots, garbage bags, lots of salt.
Goal: To get as much salt as possible to a specified destination, past a check point.
The Dealer: distributes salt.
Salt control: stands at a narrow passage that all teams must pass through, the salt checker searches for salt.
Split up into teams. Each team is given some water bottles, a stove, pots, and some garbage bags. At the dealer, they can get salt. Each team has to try and transport as much salt as possible, past the salt control, to the specified destination. The salt control stops each group and checks them for salt, confiscating any salt that they find. The team which gets the most salt to the destination wins.