For area kids, that final bell on the last day of school is the sound of freedom. Summer has started, and it's time to kick back, forget about homework and stash the backpack in the closet. But for Durango Nature Studies, that bell means it's time to ramp up the education and the fun. Now in its 10th year, the Durango Nature Studies Junior Naturalist Field Camp hosts kids from first to sixth grades on explorations in the great outdoors. Running throughout the summer, the camps include days filled with wilderness survival, water studies, and flora and fauna. Of course, there is plenty of good-old messy fun worked in, with lessons on erosion with real mud and studies of geology using jelly sandwiches. The sessions are four days each, promising plenty of exploration, friend making and fist bumps when it’s time to say goodbye.