Tired of the big city? Take the A train to Rockaway beach! You can enjoy a long metro ride through Queens and afterwards walk along the sandy beach. There are no typical beach facilities (as one would expect back home) and I was quite irritated by the standardized homes along the way but there is nothing like a cool summer breeze close to the ocean.
An alternative is to visit Long Island and the Long Beach, which isn’t too far away but much harder reachable if you don’t have a car.
New York, USA