Assateague State Park in Maryland is by far your best choice. Very large campground nestled in the dunes of this beautiful barrier island on the boundary of VA/MD. Lots of wild horses, many times right in your campsite. Bathhouses are being all redone. Check website for closures. We stayed last summer and our bath house was brand new. You can hear the ocean from your campsite and the beach is very short walk up and over the dune. Lots of great biking as well. Ocean City just up the road from the park. Could not stay longer than a few days because we had no reservations. Book now if you want to go.
Assateague State Park Map
350 sites are available, each with a fire ring and picnic table.
Electric hook-ups are available in the H-Loop only.
Most campsites can be reserved from April 22, 2015 through October 25, 2015.
Other choice is National Seashore Campgrounds just down the road but they are not as close to the ocean.