When the camp ground is desserted is when my DH loves to camp. We'll sometimes stay an extra night past the w/e normal check out just for him for this reason. It's both spooky and cool at the same time lol.

If not that many campers, this won't work so great, but maybe for the future. A scavenger hunt. The kids split up into two teams (safety in numbers as well). They have to find one thing for each letter of the alphabet. Or, a specific list.

The places we stayed were family friendly with a ton of kids. So, no one seemed to mind helping out with giving stuff away.