All shelters have water available at the shelter or close by. All water must be purified. Bears, mice and skunks will ALL try to get at your food. These animals are plentiful. Mice live in all of the shelters.
Skunks live under some of the shelters.
And bears roam through most of the shelters at some time or another. Mice are the smallest of these creatures, but pose the most significant problem. Please don't let these little critters ruin your trip. Plan on coping with them. A few precautions will enable your Scouts to deal with this and our little forest friends will live peaceably, too.