Safety in Numbers
One way to keep your children from pummeling each other and/or whining constantly on your camping trip is by bringing along other kids to keep them occupied.
Consider inviting another family or two with children of similar ages to join you on your camping excursion. Often, kids make their own entertainment just chasing one another around in circles. Plus, it'll give the adults an opportunity to become better acquainted and perhaps even slip in some intelligent conversation that doesn't pertain to the latest episode of "Phineas and Ferb."