Between mid-January and late March each year, roughly fifteen thousand humpback whales converge on Samaná Bay to mate, calve, and nurse in water that rarely drops below twenty-four degrees Celsius. The ninety-kilometre bay forms the largest calving sanctuary in the North Atlantic, sheltered by the Samaná Peninsula to the north and Miches coastline to the south. Marine biologists first documented the population in the nineteen-seventies; by 1986 the Dominican government declared the bay a marine mammal sanctuary, one of the earliest such protections in the Caribbean. Humpbacks arrive after a five-thousand-kilometre journey from feeding grounds off Greenland, Iceland, and the Gulf of Maine. Males perform elaborate songs—repeating patterns of moans, cries, and chirps that can last thirty minutes and carry twenty kilometres underwater—to establish territory and attract females. Calves born in the bay measure four to five metres at birth and gain forty-five kilograms daily on milk that is fifty percent fat. Surface activity peaks in February: breaches, tail slaps, pectoral fin waves, and spy-hops occur dozens of times per hour during high-activity windows. Samana whale watching from punta cana operates as a full-day overland and marine combination, linking the resort corridor to the sanctuary via a three-hour northbound drive through the Cordillera Oriental. Most operators depart Punta Cana between six and seven in the morning, reaching the port towns of Santa Bárbara de Samaná or Sánchez by mid-morning. Vessels range from fibreglass lanchas seating twelve passengers to forty-seat catamarans; all are required to cut engines within fifty metres of whales and maintain no-wake speed inside the sanctuary perimeter. The Dominican Navy and the Center for the Conservation and Ecodevelopment of Samaná Bay enforce a vessel cap of thirty boats on the water simultaneously, rotating departure slots among licensed operators. Captains communicate sightings by VHF radio, but boats are prohibited from encircling a pod or approaching calves directly. On-board naturalists, many trained through the Autonomous University of Santo Domingo's marine biology programme, provide real-time species identification and explain behaviours as they unfold. Tours returning to Punta Cana typically include a stop at El Limón waterfall or Bacardí Island—a sand cay off the peninsula's northern tip—converting the excursion into a twelve-hour circuit that bridges three ecosystems in a single departure.