South of Islamorada, up and over the high “Channel 5” bridge, the roadside scene gets pretty again fast, especially at the Long Key State Park (MM 67.5), where boardwalks wind through coastal hammocks (dense stands of mahogany and dogwood trees that bunch together on the small humps of land that lie above the tide line). There’s a campground (305/664-4815, $36) in the park, with showers, and some nice but narrow beaches. Access may be affected by ongoing beach restoration.