This guide to the 43 best beach and coastal campgrounds from Maryland to the Texas-Mexico border is for the dedicated beach camper as well as the family who loves to vacation at the seashore, whether traveling with tent, car, or recreational vehicle. The destination possibilities are vast—from the dunes and isolation of Padre Island, to the tropical and historical Keys, to the historic sites around St. Augustine, to the lighthouses of the Outer Banks—and a significant stretch of this land is county, state, or national park property accessible to the public.