Family camping trips are a prime opportunity to snap some photos. The naturally beautiful scenery provides the perfect backdrop for posed portraits and candid shots. How serious you want to be about picture taking is entirely up to you; most cell phones these days have their own cameras, but more dedicated photographers might wish to bring along their own equipment.
If your family regularly heads out into the wilderness, and you're interested in high-quality photography, consider investing in a heavy-duty camera. You can find a number of models that are both water- and shock-resistant, which will serve you well in the great outdoors.