Lagunas Redonda y Limón

Lagunas Redonda y Limón is a coastal wildlife refuge on the northeastern shore of the Dominican Republic, in the province of El Seibo near the town of Miches. Established in 1983 by Decreto 1315 and covering roughly 53 square kilometers, it protects two contrasting brackish and freshwater lagoons set behind the Atlantic coastal plain, south of the Miches–Nisibón highway. ^[1] Laguna Redonda is a brackish, saline lagoon linked to the sea through the Caño Celedonio, while Laguna Limón is a shallower freshwater body fringed by reed beds and rice fields. ^[2] Ringed by mangroves and designated a Ramsar Wetland of International Importance in October 2022, the refuge is one of the eastern country's most valuable sanctuaries for resident and migratory waterbirds. ^[1]

The lagoons and their mangrove fringes sustain abundant waterbird life, including herons, egrets, roseate spoonbills, ibises, and pelicans, alongside overwintering North American waterfowl such as lesser scaup, ring-necked duck, ruddy duck, Bahama pintail, and blue-winged teal. ^[1] The wetlands harbor five amphibian species endemic to Hispaniola and support the American crocodile in sheltered brackish reaches. West Indian manatees frequent the adjacent coastal waters, occasionally entering the lagoon system through the Caño Celedonio. The palmchat (cigua palmera, Dulus dominicus), the Dominican Republic's national bird, is common in the surrounding scrub and palm groves, and the mangroves serve as important nurseries for fish and crustaceans.

Mangrove forest dominates the shoreline of Laguna Redonda, where all four Caribbean mangrove species occur, with red mangrove (Rhizophora mangle) the most abundant, accompanied by black, white, and buttonwood mangroves. ^[1] Laguna Limón is bordered by dense stands of cattails, reeds, and other freshwater emergent vegetation grading into cultivated rice fields. The surrounding coastal plain carries subtropical humid vegetation, royal palms, and secondary scrub, while beach strand communities line the nearby Atlantic shore. These plant communities stabilize the shoreline, filter runoff, and provide the structural habitat on which the refuge's birds and aquatic life depend.

The refuge occupies a low-lying coastal plain between the eastern flank of the Cordillera Oriental and the Atlantic Ocean. The lagoons are shallow depressions in Quaternary alluvial and marine sediments, separated from the open sea by sandbars and beach ridges. ^[1] Laguna Redonda's connection to the ocean through the Caño Celedonio drives the tidal exchange and elevated salinity that distinguish it from the freshwater Laguna Limón inland. Underlying limestone and unconsolidated coastal deposits give the terrain its flat relief, and periodic storm surges and sediment deposition continually reshape the barrier separating the wetlands from the sea.

The area has a tropical climate moderated by Atlantic trade winds, with warm temperatures year-round typically ranging from the low twenties to low thirties Celsius. Rainfall is relatively high on this windward northeastern coast, with a wetter season generally spanning the late spring through autumn months and a drier interval in late winter. Humidity remains high throughout the year. The zone lies within the Atlantic hurricane belt, and tropical storms between June and November can raise water levels, alter the caño's mouth, and temporarily flood the surrounding plain.

The El Seibo region and the Miches coast were inhabited by Taíno peoples before European contact, who fished the lagoons and coastal waters. In the colonial and later republican eras the surrounding lowlands were used for cattle ranching, coconut cultivation, and rice farming, the latter still practiced around Laguna Limón. The nearby town of Miches grew as a small fishing and agricultural settlement, and local communities have long depended on the lagoons and mangroves for fish, crabs, and other resources, an artisanal use that continues alongside the area's protected status.

The lagoons were first protected in 1983 through Decreto 1315, originally under a scientific reserve designation, in recognition of their importance for waterbirds and endemic amphibians. ^[1] Subsequent reorganizations of the Dominican protected-areas system, including the Sectoral Law of Protected Areas 202-04, changed the management category to wildlife refuge administered by the Ministerio de Medio Ambiente y Recursos Naturales. The wetland was designated a Ramsar Site of International Importance in October 2022, reflecting its value for migratory birds and its representative Caribbean coastal-lagoon and mangrove ecosystems. ^[2]

The refuge's principal attractions are its two lagoons and the wildlife they shelter. Small-boat excursions from Miches through the Caño Celedonio and across Laguna Redonda are the most popular way to experience the area, offering close views of mangrove channels, feeding herons and egrets, and wintering ducks. Laguna Limón, backed by reed beds and palm-lined shores, is prized by birdwatchers. The broad Atlantic beaches near the lagoon mouths, the mangrove tunnels, and the backdrop of the Cordillera Oriental make the refuge a scenic destination for nature-based tourism.

Access is via the town of Miches, reached by road from Higüey, El Seibo, or along the northeastern coastal route, with the lagoons lying just south and east of town near the Miches–Nisibón corridor. Visitor infrastructure is minimal and undeveloped; most visits are arranged as guided boat tours run by local operators and fishing families. There are no formal visitor centers within the protected area, so travelers rely on services in Miches for lodging, food, and guides. Insect repellent, sun protection, and prior arrangement with local boatmen are recommended for the humid, mangrove-lined setting.

Managed by the Ministerio de Medio Ambiente y Recursos Naturales, the refuge safeguards a nationally significant complex of coastal lagoons and mangroves. Key conservation concerns include agricultural runoff and sedimentation from surrounding rice fields, mangrove clearing, unregulated fishing, and pressure from coastal tourism development along the rapidly changing Miches shoreline. Its Ramsar designation supports wetland monitoring and international cooperation, while community-based ecotourism offers an incentive to preserve the mangroves and lagoons. ^[1] Protecting water quality and the Caño Celedonio connection to the sea remains essential to maintaining the habitat for manatees, crocodiles, and the region's waterbirds.