The Dominican Republic administers 123 protected areas covering 10,103 square kilometers of terrestrial territory and 3,715 square kilometers of marine territory as of the 2023 Ministry of Environment inventory. This represents approximately 26 percent of national territory under legal protection status across six management categories: national parks, natural monuments, scientific reserves, wildlife refuges, scenic routes, and natural resource management areas. The Sistema Nacional de Áreas Protegidas operates under Law 202-04 of 2004, which reorganized the previous framework established under Law 64-00 of 2000. The current protected areas system emerged from legislation passed after sustained pressure from international conservation organizations during the 1980s when less than 6 percent of Dominican territory held protected status. Enforcement capacity remains constrained by a national park ranger force of approximately 580 personnel as of 2022, working across areas that span from coastal mangroves to cloud forests above 2,500 meters elevation.
Los Haitises National Park encompasses 1,375 square kilometers across San Cristóbal, Monte Plata, Hato Mayor, and Samaná provinces in the northeast. The park was established by Decree 233 on June 3, 1976, and expanded to current boundaries under Law 409 in 1981. The name derives from the Taíno word meaning "mountainous land." The park protects 708 documented karst mogotes—conical limestone hills formed through millions of years of erosion—rising 30 to 40 meters above sea level across the San Lorenzo Bay estuary system. The mogote formations contain 497 documented caves with Taíno pictographs and petroglyphs dating from approximately 1000 CE to 1492 CE based on archaeological surveys conducted between 1985 and 2008 by the Museo del Hombre Dominicano. Cueva de la Arena holds the park's most extensive Taíno rock art collection with 234 individual pictographs documented in the 2006 catalog published by Adolfo López Belando. The park encompasses the largest remaining mangrove forest in the Dominican Republic at 980 square kilometers, containing four species: red mangrove, black mangrove, white mangrove, and buttonwood. The 2019 biodiversity inventory identified 230 bird species including the Ridgway's hawk, endemic to Hispaniola with an estimated population of 420 individuals as of the 2021 census by The Peregrine Fund. Access points operate from the towns of Sabana de la Mar and Sánchez. The park receives approximately 45,000 visitors annually according to 2022 Ministry of Environment statistics, with most arriving by boat from Samaná for half-day tours of the cave systems and mangrove channels.
Parque Nacional del Este occupies 420 square kilometers at the southeastern tip of the mainland plus Saona Island and Catalina Island. Established by Law 654 on December 11, 1975, the park extends from Bayahibe west to Boca de Yuma and includes 110 kilometers of coastline. Saona Island measures 110 square kilometers—the largest offshore island within Dominican territorial waters—separated from the mainland by the Catuano Channel which ranges from 300 meters to 8 kilometers wide. The island holds beaches of pulverized coral sand extending up to 100 meters wide at Playa Canto de la Playa on the western shore. The 2018 marine survey documented 112 coral species across the park's reef systems. The park protects nesting sites for the hawksbill turtle and green turtle, with monitoring programs recording 180 to 240 nests annually between 2015 and 2022 along Saona's southern beaches. The island's population of approximately 320 permanent residents as of the 2022 census occupies the settlement of Mano Juan on the southeastern coast. Cueva del Puente on the mainland side holds Taíno petroglyphs with charcoal samples radiocarbon dated to 1220 CE plus or minus 40 years in testing conducted by Universidad Autónoma de Santo Domingo in 2004. The park encompasses the Padre Nuestro cays, a cluster of three small islands 15 kilometers southeast of Saona where Christopher Columbus anchored in September 1494 during his second voyage. Tour operators from Bayahibe transport approximately 250,000 visitors annually to Saona Island according to park administration records, making it the most visited protected area in the country. The park boundaries include no-take fishing zones covering 87 square kilometers established in 2009 to protect queen conch populations that had declined 76 percent between 1985 and 2005 based on dive surveys.
Parque Nacional Armando Bermúdez covers 766 square kilometers across the north-central Cordillera Central and was established by Law 4389 on October 3, 1956—the first legislated national park in the Dominican Republic. The park was named for Rafael Armando Bermúdez Medina, who served as the first director of the national forestry service and advocated for mountain watershed protection from 1925 until his death in 1954. The park protects the headwaters of the Yaque del Norte River, Yaque del Sur River, Artibonito River, and Yuna River. Park boundaries extend from approximately 800 meters elevation at lower margins to the summit of Pico Duarte at 3,087 meters—the highest point in the Caribbean. The adjacent Parque Nacional José del Carmen Ramírez, established simultaneously by the same 1956 legislation, adds 764 square kilometers of contiguous protected territory to the south. Both parks together form the Reserva de la Biosfera Jaragua-Bahoruco-Enriquillo recognized by UNESCO in 2002. The trail to Pico Duarte from the northern access point at La Ciénaga measures 23 kilometers one-way with 2,287 meters of elevation gain. The standard ascent requires two days with an overnight camp at Alto de la Rosa or Valle del Tetero. The 2017 summit register recorded 8,400 hikers reaching Pico Duarte during that year. Guides are mandatory under park regulations established in 1988 after six fatalities occurred between 1980 and 1987. Licensed guides operate through associations based in La Ciénaga, Mata Grande, and Jarabacoa with rates set by the Ministry of Environment. The pine forests above 2,000 meters contain Pinus occidentalis, a species endemic to Hispaniola that covers approximately 340 square kilometers within both parks. Night temperatures at the summit fall below 0 degrees Celsius between December and February with occasional frost recorded in meteorological data from the Instituto Dominicano de Meteorología dating to 1975.