site 13 - spectacular!!
I can't really speak for any of the other sites here, but 13 is the only one right on the water and it's HUGE with lots of trees and absolutely beautiful scenery. I imagine in the middle of summer, it might feel slightly less secluded as there are 3 other sites relatively close by, one of which you have to walk through to get to this one, but in early September, no one else was around and it was PERFECT!
Site13
Month of VisitSeptember