The kids won't get bored: There's ice-skating, ranger programs (here's your chance to find out everything you wanttoknowabout Grizzlies and geysers) and guided cross-country ski and snowshoe tours.
That means that the collateral effects radius they will use to plan an operation will likely be much larger than the 15ft lethal effects radius. (For nearly everything you could ever wanttoknowabout collateral damage estimation and mitigation, see my paper here and for more on civilian casualties, check out my prior post here).