While camping is an excellent green vacation, bringing small children along means you have to plan accordingly. The younger ones may not be as gung-ho about hiking, particularly since their short legs have to take more steps. They may not be able to climb craggy trails as well either and whitewater rafting is usually out. On our last camping trip, we visited the playground at Patapsco Valley State Park to entertain the kids. I’d heard how much fun the 2 acre recycled tire play area was but I had never had a chance to actually visit.