Cabo Blanco Absolute Nature Reserve is the first protected area created in Costa Rica and the cradle of its famous national park system. Set at the southern end of the Nicoya Peninsula, it was established in 1963 thanks to the determination of two Scandinavian immigrants, Olof Wessberg and Karen Mogensen, who fought to stop the deforestation sweeping through the area's forests. Its story is, to a large extent, the story of Costa Rican conservation.
Its name, 'Cabo Blanco', comes from the rocky island off the cape, covered in white guano from the colonies of seabirds that nest there. The reserve protects a transition tropical forest —between dry and humid—, a coastline of great richness and remarkable wildlife: monkeys, coatis, deer, raccoons and a host of birds. Its status as an 'absolute nature reserve' means the strictest protection regime in the country: much of the area is closed to visitors.
This guide covers the essentials of Cabo Blanco with a practical eye: its historic value as the country's first reserve, the open trail that crosses the forest to a beach at the point, the wildlife and the landscape, how to get there from Montezuma, Mal País or Cabuya, the opening days and hours and what to keep in mind. Cabo Blanco is an essential day trip for anyone visiting the tip of Nicoya who wants to see where green Costa Rica began.
Cabo Blanco, at the southern tip of the Nicoya Peninsula, is the first protected area in Costa Rica, created in 1963 on the initiative of conservationists Olof Wessberg and Karen Mogensen to stop deforestation. As an 'absolute nature reserve' it has the strictest protection regime in the country, with much of its territory closed to visitors. It is considered the cradle of the Costa Rican national park system. The full story is on our history page.
Read the full history ↓The country's longest coastal province, from the Central Pacific to the deep south: from the historic coffee port of Puntarenas to the cloud forests of Monteverde, from the beaches of Manuel Antonio to the wild jewel of the Osa Peninsula and Corcovado, 'the most biologically intense place on Earth'.
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Origins, formation and what the sources say.
At the southernmost end of the Nicoya Peninsula, where the land sinks into the Pacific, there's an island that from a distance looks painted white. It isn't snow or pale rock: it's guano, the accumulated droppings of thousands of seabirds nesting on it. That white patch, visible from the coast, gave the cape its name —Cabo Blanco— and, in time, gave it to the first protected area Costa Rica would have. But before any reserve existed, this point was barely a remote, forgotten corner of the country.
The Nicoya Peninsula is one of the oldest and most distinctive regions in Costa Rica. Before the Europeans arrived it was inhabited by the Chorotega, a people of Mesoamerican origin skilled at growing maize, at pottery and at complex social organization; the name 'Nicoya' itself derives, by tradition, from a Chorotega chief who received the Spanish conquistadors in the 16th century. The peninsula had strong cultural ties to the Mesoamerican north and, during the colonial period, to the region of Nicaragua, before joining Costa Rica through the 'Annexation of the Party of Nicoya' in 1824.
The southern tip, where Cabo Blanco is today, stayed for centuries a remote and thinly populated area, covered in transition tropical forest —between the dry forest of northern Nicoya and the more humid forest of the south— and edged by a coast rich in marine life. The island off the cape, whitened by seabird guano, was a striking feature of the landscape that would end up naming the whole place.
These ecosystems, however, were not immune to human pressure. As the 20th century advanced and cattle ranching and farming spread across the Pacific side, the peninsula's forests began to fall at an alarming rate. That was the scene that, in the early 1960s, two Scandinavian immigrants determined to stop the destruction would find.
By the mid-20th century, the forests of the Nicoya Peninsula, like much of those on the Costa Rican Pacific, were retreating fast before the advance of cattle ranching, farming and logging. The southern tip of the peninsula, around Cabo Blanco, was a patchwork of forest and cleared land. It was in that context that the Scandinavian immigrants Olof Wessberg, a Swede, and his wife Karen Mogensen, a Dane, settled in the area, in the village of Montezuma.
The couple were deeply shaken by the destruction of the forest and by the loss of wildlife they were witnessing around them. Rather than accept it, they decided to act: they launched a campaign, inside and outside Costa Rica, to raise funds and support so that an area of forest at Cabo Blanco could be bought and protected before it was cleared. They wrote letters, contacted international conservation organizations and rallied support in a country that still had no system of protected areas.
Their effort, pioneering and against the current, bore fruit. With the backing of international organizations and the will of the Costa Rican authorities, protection for Cabo Blanco was established. Wessberg and Mogensen thus became founding figures of Costa Rican conservation, a married couple of foreigners in love with tropical nature who changed the environmental course of a whole country.
In 1963 the Costa Rican state established Cabo Blanco Absolute Nature Reserve, the country's first protected area. The milestone has a double dimension: on one hand, it saved a valuable transition forest and its wildlife on the tip of Nicoya from the axe; on the other, it set the institutional precedent that in the following decades would give rise to the broad system of national parks, reserves and refuges that would make Costa Rica a world model of conservation.
The category chosen, 'absolute nature reserve', is the strictest in the country: it puts protection and research ahead of tourist use, keeping much of the territory closed to visitors. That condition reflects the founding spirit of Cabo Blanco, conceived above all as a refuge where nature could recover and be conserved, rather than as a recreational destination.
The story had a tragic chapter, however. Olof Wessberg, who went on fighting to create new protected areas in other parts of the country, was murdered on the Osa Peninsula in 1975 while promoting the conservation of Corcovado. Karen Mogensen carried on the conservation work until her death. Their legacy lives on not only at Cabo Blanco but throughout the Costa Rican system of protected areas, and a reserve in the area bears Karen Mogensen's name in her honor.
The creation of Cabo Blanco did not dampen Olof Wessberg's drive; it fired it up. Convinced that Costa Rica had to protect its last great primary forests, he turned his attention to the Osa Peninsula, in the south of the country, where one of the richest and most threatened rainforest ecosystems in Central America still survived: the future area of Corcovado National Park. There, however, conservation ran head-on into powerful interests —gold panners, hunters, loggers and landowners— who did not want to see their land turned into a park.
On 23 July 1975, while carrying out a species inventory and promoting the protection of Corcovado in Osa, Olof Wessberg was murdered. The investigation revealed that a young guide had killed him on the orders of people in the area who opposed the creation of the park. It was a crime that shook the fledgling Costa Rican conservation movement and made clear that, in those years, protecting nature could cost you your life. That same year, despite everything —or perhaps partly because of the shock his death caused—, Corcovado National Park became a reality, fulfilling the vision Wessberg had given his life for.
Karen Mogensen outlived her husband and carried on the conservation work for decades. On her death, her land was donated to the state and became, by decree in 1994, the Nicolás Wessberg Absolute Nature Reserve, in tribute to her companion. Nearby, another reserve bears the name of Karen Mogensen. So the couple who began by saving a forest at Cabo Blanco ended up giving their name —and in Olof's case, his life— to the conservation system that today defines the identity of Costa Rica.
Since its creation, Cabo Blanco has been living proof of nature's capacity to recover. The cleared land taken into the reserve was left to regenerate, and in time the forest covered the slopes again and filled with wildlife. Today the reserve protects a transition forest between dry and humid, with monkeys, coatis, deer and abundant birds, and a rich coastline that includes Cabo Blanco island, a seabird refuge whose white guano gave the place its name.
The value of Cabo Blanco goes beyond the ecological. As the country's first protected area, it embodies the moment when Costa Rica decided to bet on conserving its nature, a decision that over the years would become a national hallmark and the engine of its nature-based tourism industry. Visiting Cabo Blanco is, in a sense, visiting the origin of green Costa Rica.
The reserve keeps its pioneering, strict character: the open trail down to the beach at the point lets visitors see part of the area, while the rest stays protected. More than a mass-tourism park, Cabo Blanco is a place of pilgrimage for anyone who wants to understand where the Costa Rican conservation model comes from and to pay tribute to the vision of Wessberg and Mogensen, two foreigners who gave Costa Rica the beginning of its protected natural heritage.