More than 10,000 Atlantic bottlenose dolphins inhabit the estuarine waters between Savannah and Tybee Island year-round, their resident pods navigating tidal creeks and barrier island channels with near-predictable regularity. The confluence of the Savannah River, Wassaw Sound, and the Atlantic creates a nursery habitat rich in mullet, menhaden, and blue crab — primary prey species that draw dolphins into shallow marsh edges during the two daily tidal cycles. Charter captains working these waters since the 1980s have logged feeding patterns, matrilineal pod structures, and seasonal movement between the river mouth and Back River estuary, building a navigation protocol that prioritizes observation distance and no-wake approach. The region's dolphin-watching infrastructure emerged in the early 2000s, when Tybee Island's fishing fleet began converting daylight charters into sunset eco-tours. By 2010, the Georgia Department of Natural Resources had formalized voluntary guidelines for commercial dolphin encounters, establishing 50-yard minimum distances and prohibiting intentional separation of mother-calf pairs. Today's operators hold U.S. Coast Guard certification and work within the framework of the Marine Mammal Protection Act, coordinating departure schedules around the evening ebb tide when dolphins concentrate near creek mouths and oyster bars. A savannah sunset dolphin cruise tour follows predictable corridors: departures from Lazaretto Creek or the Bull River lead into Wassaw Sound, where pods of six to twelve animals forage along spartina marsh edges as the sun drops below Fort Pulaski's western ramparts. The golden hour between 7:00 and 8:30 PM offers dual advantages. Surface visibility peaks as the sun angle drops below 15 degrees, illuminating dorsal fins and back rolls against darker water. Simultaneously, the cooling air-water temperature differential triggers baitfish to rise, concentrating dolphins in predictable feeding zones. Captains read tidal charts, wind direction, and moon phase to select routes through Calibogue Sound, Tybee Creek, or the Wilmington River, adjusting for the 6.5-foot tidal range that reshapes channel depths twice daily. Savannah sunset dolphin cruise tickets include naturalist interpretation of the salt marsh ecology — the same cordgrass meadows that filter 90 percent of coastal pollutants and anchor an estuary ranked among the most productive in the Atlantic. The experience bridges recreation and applied marine science, translating decades of field research into two-hour departures timed to the animals' own rhythms.