Sand, surf, history, marsh, woods, lighthouses, dunes, ocean, sunsets, trails, bay side - hard to tell our two tied for third place apart, except for the alligators, no alligators in Cape Cod. The Gulf Islands National Seashore is found in Florida and Mississippi and was a great place to explore. Cape Cod National Seashore in the arm extending into the ocean from Massachusetts. Both were wonderful, both had interesting history both inside and near to the parks, both had a host of great restaurants. Can’t go wrong at either place.