Will this be held in a room or the outdoors? It would be good theater to turn off the lights and ( amid the giggles and rib punches) have everyone produce a flashlight or you light a small campfire or stove. You can tie this into staying put,making a signal or comforting fire for the older boys. I suffered a horrible phobia about swimming pools and barely passed Coast Guard swimming. Years later at the same base I wound up helping a boy overcome the same fear. The pool had been drained for repair and maintenance. We spent a hour having lunch in the deep end and just talking about "stuff". I turned him over to our instructors a few days later. Kids are a tough audience. Keep it fun and slip the knowledge in when they aren't looking <img src="images/graemlins/grin.gif" alt="" />