It may be a little late to get accommodations, but check Eagles Mere, PA. I think it was about 3 hours away when we lived in Bergen County, NJ. No night life, no wild partying- just hiking and hanging out, and a beautiful, clear lake for swimming and canoeing. We discovered the Eagles Mere Inn when I took a wild gamble and selected the destination sight-unseen for one of my husband's "landmark" birthdays. We loved it so much we went back several times before we moved to KS.