The Smallest Park With the Longest Odds
Manuel Antonio National Park covers just 683 hectares of land — smaller than many city parks in the United States. It protects a peninsula on the Pacific coast of Costa Rica where rainforest meets white-sand beaches, and it holds more species of mammals, birds, and reptiles per square kilometer than almost anywhere else in a country that is itself one of the most biodiverse places on earth. Costa Rica makes up less than 0.03 percent of the world's land surface and contains roughly 5 percent of its species. Manuel Antonio is the concentrated version of that already concentrated abundance.
The park came close to not existing at all. In the early 1970s, the land around the peninsula was being cleared for tourism development. Local fishing families, some of whom had lived in the area for generations, organized a protest — blocking bulldozers with their boats and bodies. Their campaign attracted attention in San José, and in 1972 the Costa Rican government declared the area a national park. The park's existence is not a natural outcome of conservation policy. It is the direct result of people who refused to move.
What the Squatter Settlement History Means
Before and after the park's creation, the stretch of road between Quepos and the park entrance became one of the most contested pieces of real estate in Central America. Small-scale settlers built homes and businesses along the road in the 1970s and 1980s, operating under informal tenure. The Costa Rican government made several attempts to formalize land ownership, cancel conflicting titles, and draw clear boundaries between park land and private land. The process took decades and generated litigation that wound through the courts well into the 1990s.
What emerged from this messy process is the strip of hotels, restaurants, and tour operators that lines the road today. The density is striking — you can walk from a four-star resort to a budget hostel in five minutes. That proximity reflects the land-grab history: when titles were eventually sorted out, the lots were small and numerous, and development filled in every one. The park itself remained protected. Everything between the park and Quepos reflects what happens when a tourism economy develops in the absence of settled property law.
The Biodiversity Argument
Costa Rica's ecological richness has two causes: position and commitment. The country sits at the intersection of North and South America, making it a corridor for species migrating between two continents over millions of years. Creatures that evolved separately on each landmass can meet here, which produces unusual combinations — North American raccoons sharing forest with South American coatis, species assemblages that don't occur anywhere else. The Pacific coast rainforest, the cloud forest at higher elevations, and the coastal mangroves each support distinct communities, and Manuel Antonio sits at the edge of two of them.
The commitment came later and was a deliberate policy choice. In the 1970s and 1980s, Costa Rica was cutting its forests as fast as any country in the region. By the 1990s, the government had reversed course: it abolished the army (in 1948, the only country in the world to do so constitutionally), redirected that budget into education and health, and gradually built one of the most comprehensive national park systems in the tropics. Today roughly 25 percent of Costa Rica's land is protected in some form. Manuel Antonio was one of the early anchors of that system.
Sloths: What You're Actually Seeing
The three-toed sloth you'll spot motionless in a cecropia tree is not sleeping — or at least not only sleeping. Sloths have one of the lowest metabolic rates of any mammal. Their leaf diet is so low in calories and so difficult to digest that they have evolved to move as little as possible to conserve energy. Their stomach can take a month to digest a single meal. They descend to the ground only about once a week, to defecate, and that is when they are most vulnerable to predators.
The algae that grows in their fur — giving them a faint greenish tinge — is not incidental. It provides camouflage. Sloths also host a specific species of moth that lives only in their fur, descends with them to defecate, lays eggs in the dung, and then re-boards when the sloth climbs back up. The relationship between the sloth and the moth appears to be mutualistic: the moth's waste fertilizes the algae, and the algae provides cover. Manuel Antonio's guides know where the sloths tend to rest, and binoculars make the difference between a brown smudge and a face.
The Four Beaches and What Sets Them Apart
Manuel Antonio has four main beaches, each with a distinct character. Playa Espadilla Norte, outside the park entrance, is the most accessible and the most crowded — lined with vendors and easy to reach from any hotel on the road. Inside the park, Playa Manuel Antonio is the postcard beach: a perfect crescent of white sand backed by jungle, warm water, calm enough for swimming. Playa Biesanz, accessible by a path from one of the larger hotels, tends to be quieter. Playa Escondida, which requires more walking through the park, rewards the effort with isolation.
The park limits the number of daily visitors, which matters more than it might seem. Without the cap, the trails would be compacted, the wildlife pushed back, and the experience reduced to a crowded beach walk. The entrance fee and the limit are conservation tools. Arriving at opening time, before the day-trippers from San José, gives you an hour in the park when the animals are most active and the trails are nearly empty.
Quepos: The Banana Town
Quepos, the nearest town to the park, has a history that has almost nothing to do with tourism. It was a company town — built by United Fruit Company in the 1930s to service banana plantations that covered the coastal lowlands. When a disease called Panama disease wiped out the Gros Michel banana variety in the 1950s, United Fruit pulled out and the economy collapsed. The government introduced African oil palm as a replacement crop, and the landscape around Quepos shifted from banana to palm. The palms are still there — the oil mills operating on the edge of town are a reminder of what the local economy was before tourists arrived.
Tourism transformed Quepos in the 1980s and 1990s, driven first by sport fishing (the Pacific coast waters here are among the best marlin and sailfish grounds in the world) and then by the park. The town retains its port character — fishing boats work the marina alongside sport fishing charters, the central market is real rather than decorative, and the local buses still run on Costa Rican time. It is a useful counterweight to the resort strip up the hill.
The thing to carry with you
The park is 683 hectares. That is almost nothing — a rounding error in a country that protects a quarter of its land. And yet everything Costa Rica does well is compressed into that small a space: the policy that chose parks over an army, the biodiversity that two continents funneled into one corridor, the fishing families who blocked the bulldozers before any of it was official. You will walk across the whole park in an afternoon and it will feel enormous, because what you are walking through is not just forest. It is the proof that a country can decide what it values and then actually follow through. That is rare anywhere. It is the reason the sloths are still in the cecropia trees and the reason the beach is still backed by jungle instead of concrete. The smallness is the point — it means nothing here was saved by accident.