This Game is meant for Boy Scouts, Webelos scouts.
Decide for yourself if it is appropriate for your younger scouts or not.

3 bricks or 6 inch lengths of 2x4 for each team

Define start line and a finish line about 25 feet away. The area between is lava, acid, or some other terrible death awaiting.

Teams line up at start line.
First scout on each team is given the three bricks.
He must cross to the finish line with only the bricks touching the ground.
When he reaches the finish, he becomes immune to the lava, picks up the three bricks and races them back to the next scout.
First patrol to finish or complete a set number of round trips is the winner.

If a scout touches the ground, he must bring the bricks back and start over or give them to the next scout and go to the end of the line.