When the sweltering summer gets you down, head to the deepest natural lake in New Jersey for a bit of R&R. Better yet, grab your cooler and a pack of friends and head out for the weekend. Group camping is available right on the water, where you can spend your days soaking up rays, and your nights perfecting your campfire skills. If sunny days beside a crystal clear lake aren’t enough for you, the 1,400 acres of forests and fields are criss-crossed with trails for hiking, mountain biking, and horseback riding. Nothing left to do but pack your bags. Kittatinny Valley Campground is waiting for you.