Los Haitises National Park
From the air, the landscape makes no sense. Hundreds of green, dome-shaped hills erupt from the coastal plain of the Dominican Republic's northeast coast, packed so tightly they look like the bubbles on a boiling pot frozen mid-eruption. This is Los Haitises - the name comes from the Taino word haiti, meaning highland - and it is one of the Caribbean's strangest and most biodiverse landscapes. Established as a national park in 1976, it covers a limestone karst plateau where millions of years of dissolution have sculpted conical mogotes, sinkholes, caverns, and mangrove channels into a terrain that feels more Southeast Asian than Caribbean. The Taino saw these hills and named them. Cultures that may have predated the Taino painted their cave walls with images we still cannot fully decode. The park limits the number of visitors allowed in, and most of it remains accessible only by boat. Some places resist being known too quickly.
Stone Shaped by Water and Time
The geology of Los Haitises was laid down during the Miocene epoch, roughly 5 to 23 million years ago, when the limestone platform that underlies the park was still forming beneath shallow seas. As the land rose and rain went to work, the karst process began: water dissolved the soft limestone along fractures, carving sinkholes between the harder remnants, which became the conical hills that define the park today. These mogotes rise to a nearly uniform height of around 200 meters, stretching 82 kilometers east to west and 26 kilometers north to south - from the municipality of Sabana de la Mar to Cevicos, from Samana Bay to Bayaguana. Beneath the surface, a labyrinth of caverns threads through the rock. The hills of the interior share their geological origin with the small islets scattered across Samana Bay, which are essentially the same karst formations partially submerged by the sea. Six rivers traverse the park, including the Yuna, Payabo, Los Cocos, and Naranjo, draining through two separate basins and feeding the mangrove estuaries along the coast.
Where the Forest Meets the Sea
Los Haitises sits in one of the wettest corners of the Dominican Republic, receiving around 2,000 millimeters of rainfall annually and ranking near the top nationally for both total precipitation and number of rainy days. That rain sustains two distinct forest types: humid subtropical forest in the drier zones and very humid subtropical forest where moisture concentrates. The broadleaf canopy includes West Indian mahogany, ceiba, cigar-box cedar, and musk wood - trees whose Dominican names (caoba, ceiba, cedro) echo through centuries of island life. Orchids cling to branches in profusion. Along the coast, the park shelters the greatest abundance of Caribbean mangrove found anywhere, dominated by red and white mangrove species whose tangled root systems stabilize the shoreline and create nurseries for marine life. Cupey trees dominate the rocky islets, their horizontal branches serving as perches for the colonies of frigatebirds and pelicans that wheel endlessly overhead.
The Hawk That Nearly Vanished
Los Haitises holds the greatest diversity of fauna among the Dominican Republic's protected areas, a distinction earned by the sheer variety of its habitats - from cave systems to mangrove channels to humid forest canopy. Two mammals found only on Hispaniola survive here: the Hispaniolan hutia, a large rodent that lives in trees and rock crevices, and the Hispaniolan solenodon, a venomous insectivore that predates the dinosaurs' extinction. Both are critically threatened. But the park's most celebrated resident flies. The Ridgway's hawk, endemic to Hispaniola and critically endangered, maintains its largest remaining population within Los Haitises. Brown pelicans and magnificent frigatebirds nest on the offshore cays, while Hispaniolan amazons - bright green parrots with white foreheads - call from the forest interior. Barn owls and stygian owls hunt the twilight. The Cayo de los Pajaros, or Bird Key, sits between two passages with names that capture the bay's dramatic character: Boca del Infierno - the Mouth of Hell - and El Naranjo Arriba.
Painted Walls, Unknown Hands
Deep inside the karst hills, caves open into chambers whose walls bear pictographs and petroglyphs left by peoples who lived here long before European contact. Some of these images may predate the Taino, the culture most associated with pre-Columbian Hispaniola, though the identities of the artists remain uncertain. The paintings include geometric designs, human and animal figures, and symbols whose meanings have been lost. Water erosion created the caves over millennia; human hands decorated them over centuries. Today, guided boat tours from Sabana de la Mar, Sanchez, or the town of Samana bring visitors into the bay and up to the cave entrances, where the pictographs are visible in the dim light. The park strictly limits the number of visitors to protect both the fragile cave art and the surrounding ecosystems. There is no road access to most of the park - you arrive by water, navigating through mangrove channels and past the bird-covered islets, the mogotes rising around you like ancient watchtowers.
Arriving at the Edge
Most visitors reach Los Haitises by boat from Sabana de la Mar on the park's eastern edge, from Sanchez to the north, or by crossing Samana Bay from the town of Samana. A visitors' center at Sabana de la Mar provides orientation and ecological guides. Four-wheel-drive vehicles can reach the park from the south, but the approach is rough and the roads are shared with sugarcane transport trucks serving the cattle ranches and cane fields of Monte Plata Province. The park was originally established as a forest reserve before being designated a national park by Law 409 on June 3, 1976. Its boundaries have been redrawn several times, and a 1996 decree expanded the protected area significantly. Despite the protections, deforestation at the park's margins remains a concern. A private highway is being built through the surrounding mountains, and a new airport is under construction in Samana - changes that will make this remote corner of the island less remote. For now, though, Los Haitises belongs to the hawks and the herons, the hutias and the mangroves, the painted caves and the rain.
From the Air
Located at 19.04N, 69.59W on the northeast coast of the Dominican Republic, bordering Samana Bay to the north. From altitude, the park is unmistakable: hundreds of uniform conical hills (mogotes) packed tightly together, covered in dense green forest, with mangrove-fringed coastline along the bay. The karst plateau stretches 82km east-west and 26km north-south. Look for the Yuna River draining through the western portion and the scattered islets in Samana Bay. Nearest airports include Samana El Catey International (MDCY) and Las Americas International (MDSD) near Santo Domingo. The park receives heavy rainfall year-round; expect haze and cloud cover, especially in the interior hills. Best visibility from 3,000-5,000 feet.