Cayos Siete Hermanos

The Cayos Siete Hermanos, Monte Grande, Monte Chico, Terrero, Cayo Muerto, Tuna, Cayo Arena and Tururu, are an ecological and ecotourism gem located northwest of Monte Cristi. The siete hermanos are an essential haven for nesting and mating migratory birds. They serve as a natural refuge for Hawksbill turtles and various endemic birds too.

The Siete Hermanos are as high as 1.5 to 4.4 meters above sea level. They are flat with depressed centers. These depressions are perfect nesting shelters for breeding sea birds.

Monte Chico and Tuna, especially, are ecologically important. They are a birdwatchers’ paradise. Every year from May to August these islets become nesting and mating centers for many migratory seabirds including, Bridled tern, Brown noddy, Bridled tern and Sooty tern. They are also habitat for pelican, earwig, coronary pigeon and yellow warblers.

Not only are the Hermanos Siete Hermanos a wildlife sanctuary, they are also the home of coral reef and shipwrecks. The crystal-clear blue waters surrounding the keys are perfect for scuba diving and snorkeling the reef and wrecks.

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