I should have mentioned that I have other material for the cadets - I just posted the bare scenario. I also have a hand-drawn map (very crude, just shows the campsite, road, trails, and lake - 6 mile x 6 mile, centred on the campground); two weather reports (one predicting fairly mild weather for the next two days, the other predicting snow and freezing temperatures) plus a couple of pages on basic terminology and types of searches.

The idea behind the two different weather forecasts: I'll give them the "mild weather" forecast and get them to come up with a plan of action. If time permits, I'll then give them the "harsh weather" forecast and get them to think about what changes, if any, this would force them to make to their plan.