Folly Beach sits at the confluence of three tidal systems—the Folly River, Lighthouse Creek, and the Atlantic Intracoastal Waterway—creating one of the southeastern seaboard's most productive estuarine nurseries. The Morris Island Lighthouse, a 161-foot brick sentinel completed in 1876, now stands 1,600 feet offshore after a century of barrier-island migration claimed the land beneath it. What began as a mainland beacon became an offshore monument, its foundation encircled by sandbars that shift with each hurricane season. The settlement at Folly Beach emerged in the 1940s as a blue-collar surf town distinct from Charleston's plantation corridor twelve miles northeast. Its pier, rebuilt four times since 1995, extends 1,045 feet into waters where the Gulf Stream's northern edge meets the Carolina shelf. Commercial shrimping gave way to recreational charters by the 1980s, and today's sunset boat tours trace routes once navigated by Confederate blockade runners threading the shoals between Morris and Folly islands. The estuary's salinity gradient—brackish at the river mouth, fully marine at the inlet—supports spotted seatrout, redfish, and seasonal tarpon migrations that draw anglers year-round. Bottlenose dolphins, part of a resident coastal population studied by NOAA since 2003, congregate in the marsh channels during evening high tides to hunt mullet against the cordgrass banks. Charter captains time departures to the final two hours before sunset, when westward light illuminates the Spartina alterniflora marshes in amber and the lighthouse silhouette sharpens against the horizon. The boat tours offered from Center Street Marina range from pontoon eco-cruises emphasizing marsh ecology to faster catamaran charters that reach the offshore sandbars where pelicans roost at dusk. The absence of an entrance fee reflects the public-access maritime tradition; costs accrue only through private or shared charter bookings. The Folly River's oxbow bends shelter rookeries for tricolored herons and roseate spoonbills during breeding months, while the Morris Island complex—now a 1,700-acre refuge managed by the South Carolina Department of Natural Resources—hosts one of the state's largest nesting colonies of least terns. These barrier beaches, eroded by storm surges yet replenished by longshore drift, form a dynamic coastal laboratory visible from the water but inaccessible by foot, making the folly beach sunset boat tour the sole practical means of witnessing the lighthouse's ongoing retreat and the ecological succession unfolding on the accreting shoals to its south.