We had the first weekend-long camping trip at Squam Lake this year last week (yes, there'll be another one soon). The beautiful Squam Lake is in New Hampshire, and was the stage for the film, "On Golden Pond" with Henry Fonda and Katharine Hepburn. Early booking is recommended. Those camp sites are quite popular.
We took Kaiju there last September. The camp site we had this time was very similar (and close) to last year's. What was not similar was that it POURED through the canoe ride there (1 - 1.5 hrs), and all through the first night. Ick. We set up a tarp in the rain so we could have a little non-drenching area, but what we wore (including shoes) and everything we left outside got soaked regardless.