Five months until we camp and we had two sites to pick from at our chosen (and admittedly very popular) park. Five months! I see there is a three booking limit. I wonder if they also discourage people booking the same weeks at different sites/parks. Guaranteed, as I watch the site map every day for the next couple off months, some cancellations will appear. Mainly, I am convinced, because people are double and triple booking sites "just in case". It is incredibly frustrating (yet it still beats the no reservation times when I was a kid. We would line up for days down the highway, hoping to get a site...). /Vent over.