The area of the national parks combined totals 1470 square kilometers as of 2004. This reflects a long-term process of growth, which started with the establishment of Santa Rosa National Park in 1971. Over several decades, surrounding lands were purchased and nearby national parks connected to the growing protected area, so that the Guanacaste Conservation Area came to encompass a high diversity of tropical dry forest, rainforest, cloud forest, and marine habitats. The park contains about 2/3 of the endangered animals of Costa Rica.
The Guanacaste Conservation Area comprises 88,000 terrestrial hectares
and approximately 43,000 hectares of marine area. The entire area extends from 19 kilometers out
in the Pacific Ocean to the coast of northwestern Costa Rica, and then inland through lowland
Pacific dry tropical forests, up into the mountains to over 2,000 meters elevation,
then down on the Atlantic Caribbean side into the upper portions of lowland rainforests.
The area is a complex of almost entirely contiguous protected areas, forming a single
larger protected area. The protected areas are the Santa Rosa National Park, Rincon de la Vieja
National Park, Guanacaste National Park, Junquila Wildlife Refuge, as well as the
Forestry Experiment Station and Marine Area, part of Santa Rosa National Park.
Approximately 60% of all species present in Costa Rica are found in the Guanacaste Conservation Area,
or from a global point of view, approximately 2.4% of all the biological diversity of the planet.
In addition, the area's fauna and flora are characterized by a major intercontinental
convergence of species, with their origins in the Neartic and Neotropical Echozones.
Many species in the area range as far north as the regions of Mazatlan and Tampico in Mexico,
and others as far south as Brazil and Bolivia. The Guanacaste Conservation Area contains 37
wetland areas, among which are included some of the most important in Central America.
Its mangrove forests contain eight species of mangroves and are exceptionally intact.
The area's dry tropical forest, totaling approximately 60,000 hectares, is a complex
mosaic of old growth patches and regenerating areas varying up to 400 years in age.
The Guanacaste Conservation Area contains important and apparently healthy populations of
many of Central America's most typical vertebrates, with a grand total of 940 known
vertebrate species. It is estimated to possess thousands of species of fungi,
nematodes, coleoptera and other insects. Three elements are fundamental determinants of the
great biological richness of the area. The most intact inshore Pacific marine ecosystem
between the Panama Canal zone and Mexico, with major nutrient-rich upwelling currents,
causing high productivity in the surface layers. The only remaining significant area of Central
American to Northern Mexican Pacific dry tropical forest. A major altitudinal transect of 105
kilometers, including eight life zones, within which there is a continuous band of mangroves
on the Pacific coast, Mesoamerican Pacific dry tropical forest, humid montane tropical forest,
cloud forest, and finally on the Caribbean Atlantic slope, tropical rainforest.
The Guanacaste Conservation Area is internationally significant and represents the only remaining
possibility of protecting and conserving a large size and ecologically complete dry tropical forest
ecosystem left in the Americas and in contiguous association with its nearby coastal marine and
human montane, cloud, and wet lowland Atlantic Caribbean rainforests. The area can be compared
with other similar areas at worldwide, neotropical, and Mesoamerican levels. The sample of dry tropical
forest protected in the Guanacaste Conservation Area is the third largest in the world,
after Kakadu National Park in northeastern Australia and Thungyehwa Kakayeng Wildlife
Sanctuaries in Thailand. The zone contains a complete dry forest ecosystem. Tropical dry
forest is the most severely threatened of all the major tropical habitat types, with less than 0.02%
remaining of the tropical dry forest that once constituted more than half of the woody vegetation
of the planet's tropical regions. The area is the only conserved dry forest in the neotropics,
large and contiguous enough to sustain its full complement of species indefinitely.
The Guanacaste Conservation Area is the only World Heritage Site in the neotropical realm
that protects dry tropical forest. Its 60,000 hectares of dry tropical forest is the largest
and by far the best protected of such forests in the Americas, since the coastal near inland dry
and semi-dry tropical coastal and scrub-thorne forests of northern Peru and southern Ecuador
are fundamentally a different complex than typical dry tropical forests of Central America.
Plus they have been severely deforested, grazed, and or otherwise disturbed over almost all their
extension. All the other protected areas, including dry tropical forests of the Central
American to Northern Mexican type in the region, are far smaller in size, scattered widely,
and with no biological corridors connecting them, and subject to much greater edge effects.
The Guanacaste Conservation Area is the only protected area in all of Central America and
to include a continuous transect from Pacific marine areas to dry tropical forest, and then
with altitudinal variation, a variety of adjacent forests onwards almost to the Caribbean coast,
with humid forests, cloud forests, and wet lowland tropical forests.
One of the protected areas within the Guanacaste Conservation Area,
the Rincón de la Vieja National Park, is one of Costa Rica's most diverse ecological parks.
Known for its stunning diversity of flora and fauna, this national park is home to two volcanoes,
the Rincón de la Vieja and the Santa María, as well as six different volcanic peaks,
and 32 rivers and streams. The name Rincón de la Vieja is translated as Old Woman's Nook,
and refers to the legend of a young girl whose lover was thrown into the volcano by her father,
after which she became a recluse with healing powers. This national park extends on both the
Caribbean and Pacific sides of the Cordillera de Guanacaste. The Pacific slopes of the volcano
have distinct dry seasons, while the Caribbean side is wet and lush green. Spread over 14,083
hectares, this park is also the habitat of an impressive array of wildlife, insects, and birds,
like the spider monkey, the emerald toucanet, jaguars, cougars, and tapirs.
Rincón de la Vieja National Park is the cradle of the most important hydrographic river basin
of Guanacaste, originating in innumerable rivers and ravines of pure crystalline water.
The Blanco River passes through this area. The Rincón de la Vieja presents a large diversity
of habitats due to the differences in altitude and precipitation, the volcanic eruptive effect,
and type of watershed. In the lower parts, the most common trees are laurel, guanacaste,
acetuno, ardillo, naked indian, bitter cedar, and capulin blanco. The intermediate zone that
lies between 800 and 1,500 meters above sea level is thickly covered with cupi, madwood,
jicarodanto, yos, iguano, and oak, which grows over 30 meters high and up to one meter in diameter.
From 1,500 meters up to the top, the forest is short and the trees are covered with moss and
toras. The most common species are cupi, papayillo, and crespen huacute. The top of the volcano is
covered by ash and vegetation is sparse. Plants include cupi and the poor man's umbrella.
The vegetation in the northwestern sector of the park is typical of the Atlantic side of the
volcano. The forest tower is overhead with trees up to 40 meters tall. The understory is often very
mixed with the predominant growth of palms. The neighboring Blanco River pool is a tranquil pool
of clear water surrounded only by forest and birdsong. With over 200 volcanic formations,
Costa Rica is a literal hotbed of relaxing mud bass, mineral pools, and thermal hot springs.
Celebrated as one of the country's best ways to be pampered, hot spring facilities range
from rustic natural pools to manicured grounds with well-maintained springs.
Hot springs are generally defined as springs produced from geothermally heated groundwater.
There are several sources for earth-heated waters, but in Costa Rica there is but one, volcanoes.
Adjacent to underground lava and hot rocks, spring water travels through the ground,
often picking up dissolved solids. Los Azufrales is a collection of hot sulfur springs.
Lakes containing sulfur dioxide fill small hollows with constantly bubbling muddy water.
Vapor holes are particularly active during the raining season. Visitors can check out the
hornillas, a collection of mud cones, mud pots, and vents that are most active during the rainy season.
Natural hot springs or warm thermal pools located adjacent to cool water rivers
are an option for adventurous travelers and hikers. Generally located within national parks
or private reserves, these pools are rustic and offer few amenities. Most notable are those in
National Park. A hot spring is a natural discharge of groundwater with an elevated temperature.
Most hot springs result from the emergence of groundwater that has passed through or near
recently formed hot igneous rocks. In general, the temperature of rocks within the earth increases
with depth. The rate of temperature increase with depth is known as a geothermal gradient.
The number of tree species in Costa Rica is approximately 1900, with the national tree
being the Guanacaste. Enterolobium cyclocarpum, commonly known as Guanacaste, Caro-Caro,
or elephant ear tree, is a species of flowering tree in the pea family, Fabaceae, that is native
to tropical regions. It is known for its large proportions, its expansive, often spherical,
crown, and its curiously shaped seed pods. The abundance of this tree, especially in Guanacaste
province, Costa Rica, where it is prized for the shady relief it provides from the intense sun,
coupled with its immensity, have made it a widely recognized species. The park's geology is very
unique. Most Central American countries share an incredible biodiversity and ecosystems because
of how, when, and where Central America was formed by two tectonic plates pushing against
each other. What is today Costa Rica was initially underwater volcanoes that over thousands and
thousands of years kept adding layers, and therefore to its size, till eventually they
surfaced and continued to grow, just as Hawaii does today. Once there were several volcanoes
that reached out of the sea, erosion and further volcanic activity eventually led to a continuous
landmass connecting North to South America only about three million years ago. This enabled animal
and plant migration from North and South, and is the main cause of the high biodiversity of this
region. Costa Rica is home to approximately 160 different areas that are dedicated to protecting
the environment and priceless natural treasures of Costa Rica and Central America. Costa Rica has
28 national parks, of which two are marine parks, that expand its reach of protection out into the
sea. There is a very large number of wildlife refuges and nature reserves. The Guanacaste
Conservation Area has the greatest amount of its area in government ownership within Costa Rica.
In other words, almost 100% of the terrestrial and all the marine area of the existing decreed
protected areas, which make up the area, are in government ownership. The borders of the Guanacaste
Conservation Area are well defined, protected, and in virtually all areas relationships with
bordering landowners are good, or at least civil and peaceful. The current strategy calls for the
current 88,000 hectares of terrestrial habitat and 43,000 hectares of marine zone in the Guanacaste
Conservation Area to be gradually expanded to approximately 110,000 hectares of contiguous land
and 50,000 hectares of marine areas. In general, the area has widespread and solid local support
from its neighbors and the public in general in Guanacaste Province. That is due in large part to
the extensive efforts of the Guanacaste Conservation Area to incorporate local leadership into the
A local committee was established with several representatives of major local social and
economic interests as members, along with the area's leadership. It mainly acts at the advisory
level, but does take part in major budget allocation decisions for the overall program.
Support also comes from the fact that the area is reaching some 2,500 school children
in all of the primary schools and several high schools surrounding its borders, with its basic
biological-ecological literacy campaigns. Moreover, the area itself, the extensive biological
inventory programs within the area, and many visiting scientists who use its five biological
research stations, have been providing new sources of employment for an already marginalized region,
which is also suffering the effects of a major economic downturn over the past 15 years.
In terms of its economic sustainability, the Guanacaste Conservation Area is in far better
condition than the majority of protected areas in the developing world. A little over 25% of the
country's territory is under some category of protection, and this percentage is increasing
thanks to the support of the private sector, which has created many private reserves dedicated
mainly to ecotourism and research. This is a conservation effort that few countries in the
world have undertaken, and in which Costa Rica has invested substantial resources for the well-being
of present and future generations. Costa Rica has a very comprehensive legal framework for the
conservation and sustainable use of biodiversity. This has been strengthened with the enactment of
the Biodiversity Law, approved in 1998. To complement national efforts to create a legal
framework for biodiversity conservation, Costa Rica has also signed and ratified various
international and regional agreements, including the Convention on Biological Diversity,
the Cities Agreement that regulates the trade in endangered species, and the Wetlands
or Ramsar Convention, among many others. The knowledge obtained through inventories and
scientific studies, and their appreciation by society, plays an essential role in ensuring
the long-term conservation of the country's protected areas and natural resources. The
native peoples living in the area at the time of the Spanish arrival in 1519, the Choroteco tribe,
were a group whose ancestors had emigrated south from Mexico. When Hernán Ponce de León and Juan
de Castañeda sailed into what is now known as the Gulf of Nicoya on the last leg of their
exploratory voyage from Panama, the name of the regional chieftain was Nicoya, thus the origin of
the name of both the Gulf and the peninsula. During the first two decades of the Spanish
conquest in this region, the invaders established a lucrative trade, the sale of human slaves to
Panama and Peru. This activity, together with untold deaths resulting from disease, decimated
the local population. Spanish settlement of Guanacaste was slow, since most of the colonization
from 1563 onwards was concentrated in the Central Valley, and there was very little native labor
force left in the lowlands to be employed in farming activities. The Spaniards brought in
Zambos, a mixed race of escaped black slaves and indigenous people from eastern Nicaragua
and Honduras to help work the haciendas in Guanacaste, but even so the population was too
low to sustain much agricultural production, and so cattle ranching developed as the most
common activity in the region due to the low manpower requirements. Santa Rosa National Park
is famous not only as a place of beauty, but also as one of great historical significance.
Costa Rica has been invaded three times by foreign armies, and every time the would-be invaders were
defeated within Santa Rosa National Park's current boundaries. The best known of these
victories was the Battle of Santa Rosa on March 20, 1856. On that date, 9,000 Costa Ricans met
the notorious and detested Filibusters, an army of foreign pirates and adventurers led by William
Walker. A small Costa Rican army won the final fight against the Filibusters at La Casona,
a ranch house located in Santa Rosa. Today, a rebuilt La Casona is preserved as a national
monument, dedicated to the memory of the men who risked and lost their lives fighting for Costa
Rican freedom. Filled with lush vegetation during the rainy season, the Santa Rosa National Park
turns into a tropical dry forest in summer, with many meandering trails and stunning beaches.
The park is divided into two zones, the Santa Rosa section and the Murcia Lago section.
Santa Rosa National Park preserves two different values, an immense diversity, and a key part of
the history of Costa Rica. The park is a mosaic of 10 distinct habitats, including mangrove swamp,
savanna, and oak forest, which attract more than 250 bird species and 115 mammal species,
half of them bats, including two vampire species. Among them, relatively easily seen animals such
as white-tailed deer, cuatamundis, howlers, spider, and white-faced monkeys, and anteaters.
The park is divided into three sectors, containing a total of eight ranger and biological stations,
Santa Rosa, Nancite, Santa Elena, Naranjo, Murcia Lago, Islas, Ejunquila stations,
and the Guanacaste Conservation Area office. Sector Santa Rosa is home to La Casona Historical
Museum and the Nancite station. The Nancite biological station, which offers rustic
facilities for researchers, is heavily protected and accessed only with prior approval.
Sector Santa Elena covers a central part of the peninsula and includes the Santa Elena station
and the Naranjo station. Sector Murcia Lago is in the northwestern part of the Santa Rosa
Peninsula and is known as the Murcia Lago or Bat Sector. The Islas station, also part of this
sector, is located on an island that is part of a series known as the Bat Islands, which are
accessible only by boat. The Ejunquila station, a reforestation laboratory, is not on the Santa
Rosa Peninsula, but slightly to the north. Ecotourism has become an important economic
force in the Guanacaste Conservation Area and its surrounding rural and semi-urban region.
Ecotourism is already growing in the region, but most of it is resort beach-oriented,
and the main economic investments and flows are to companies outside of Guanacaste
and partly foreign in many cases. The much smaller part of it is nature tourism to wild
areas and for wildlife viewing, and with only very limited local benefits so far,
although that is growing slowly. The Guanacaste Conservation Area has begun to promote and
facilitate such development and activities with local communities and interest groups
through a series of initial contacts, technical meetings and workshops.
The Guanacaste Conservation Area explores proactively a process of participatory evaluation,
design, planning and development of the type of nature-oriented tourism it wants to offer within
the area. The Guanacaste Conservation Area demonstrates significant biological and
ecological processes in both its terrestrial and marine coastal environments, as exemplified
by the evolution, succession and restoration of Pacific tropical dry forest. It can also be seen
by altitudinal migration and other interactive biogeographic and ecological processes along its
dry forest, montane humid forest, cloud forest, lowland Caribbean rainforest transect, as well
as the major upwelling and development of coral colonies and reefs in regions long considered not
to have either. The Guanacaste Conservation Area contains important natural habitats
for the conservation of biological diversity, including the best dry forest habitats in
communities from Central America to Northern Mexico, and key habitat for threatened or rare
plant and animal species. The site demonstrates significant ecological processes in both its
terrestrial and marine coastal environments. These processes include the evolution, succession
and restoration of Pacific tropical dry forest, altitudinal migration and other interactive
biogeographical and ecological processes, and major upwelling and the development of
coral colonies and reefs. In 1999, the Guanacaste Conservation Area was inscribed as a UNESCO World
Heritage Site.