Afuerita Island - Coiba National Park
Afuerita Island: A Tiny Island with Remarkable Marine Life
Afuerita Island is one of the smallest named islands in Coiba National Park. Located beside the larger Canal de Afuera in the northern part of the archipelago, this tiny Pacific island covers approximately 27 hectares.
Despite its small size, Afuerita is surrounded by the remarkably productive waters that make Coiba one of the most important marine protected areas in the Eastern Tropical Pacific. Its rocky coastline, shallow marine habitats and surrounding reefs support a diverse community of marine organisms—and have even contributed to the discovery of a species previously unknown to science.
Afuerita and Canal de Afuera
Afuerita lies beside the much larger Canal de Afuera, an island of approximately 240 hectares. Together, the islands form part of an area sometimes referred to as the Canales de Afuera.
The two islands are distinct, despite their similar names. Historical nautical descriptions referred to the larger island simply as Afuera and the smaller neighboring island as Afuerita, while modern park documentation generally uses Canal de Afuera for the larger island.
Surrounded by channels, rocky reefs and open Pacific water, the islands form part of the northern marine landscape of Coiba National Park.
A Small Part of a Vast Protected Area
At just 27 hectares, Afuerita is tiny compared with Isla Coiba, Jicarón or even neighboring Canal de Afuera. Yet size isn’t necessarily an indication of ecological importance.
Small islands and their surrounding shallow-water habitats contribute to the remarkable variety of environments found throughout Coiba National Park. Rocky shorelines, submerged reefs, sandy areas and deeper channels create different habitats within relatively short distances of one another.
Together, these environments support the extraordinary marine biodiversity for which Coiba has become famous.
A Species Discovered at Afuerita
One of the most fascinating things about Afuerita comes from beneath the water.
Scientists exploring a shallow subtidal flat at Isla Afuerita collected a tiny mud-shrimp that proved to be something remarkable: a species previously unknown to science.
The animal was eventually described in 2020 as Strianassa lerayi. It was sufficiently different from previously known mud-shrimps that researchers established not only a new species, but an entirely new genus, Strianassa, to classify it.
The specimen collected at Afuerita became the holotype—the individual specimen used by scientists to formally describe and define the new species.
A Natural Laboratory in the Pacific
The discovery of Strianassa lerayi is a perfect example of why Coiba is so important to scientists.
The park’s isolation, variety of habitats and relatively protected ecosystems make the archipelago an extraordinary location for biological research. Scientists continue to document the plants and animals inhabiting its forests, reefs, shorelines and marine environments.
Sometimes the most scientifically interesting discoveries aren’t whales, sharks or other spectacular animals. They can be tiny organisms living beneath rocks, inside sediments or on shallow underwater flats.
Afuerita demonstrates just how much biological diversity can be concentrated around even one of Coiba’s smallest islands.
Diving Around Afuerita
Afuerita lies within one of the areas of Coiba frequently explored by scuba divers. The Canales de Afuera islands are relatively accessible from Panama’s Pacific coast and contain a variety of established diving locations.
The underwater landscape can include rocky formations, sponges, reef organisms and large schools of fish, while the surrounding waters provide opportunities to encounter the larger marine animals associated with Coiba.
Sharks, rays, turtles and large schools of fish are among the animals divers may encounter in the broader area, although wildlife sightings always depend on season, currents and conditions.
Bajo Piñón
One dive site associated with Afuerita is known as Bajo Piñón.
The site features rocky underwater habitat where divers may encounter sponges, moray eels, schooling fish and whitetip reef sharks. Like other dive locations around the Canales de Afuera, conditions can vary considerably with currents, tides and water temperature.
Coiba is known for strong currents and noticeable thermoclines, so diving in the area should be undertaken with experienced operators familiar with local conditions.
The Waters of Coiba National Park
Afuerita’s marine environment is part of a much larger ecological system.
Coiba National Park protects more than 200,000 hectares of marine habitat surrounding Coiba and its smaller islands. These waters provide habitat for an extraordinary diversity of marine animals, from tiny reef organisms to sharks, rays, sea turtles, dolphins, whales and large pelagic fish.
UNESCO recognizes Coiba as an important ecological link within the Tropical Eastern Pacific, connecting marine ecosystems and providing habitat for threatened and migratory species.
The shallow habitats surrounding islands such as Afuerita form one piece of this interconnected environment.
Exploring Afuerita
Afuerita is not a conventional island destination. There are no hotels, restaurants or developed tourist facilities, and most visitors experience the island from a boat or beneath the surface while diving or snorkeling.
Trips into the Canales de Afuera area can combine several reefs, islands and marine sites during the same excursion. The exact itinerary depends on sea conditions, currents, weather and the experience level of the visitors.
Santa Catalina is one of the principal departure points for trips into Coiba National Park and provides access to dive and boat operators familiar with the northern islands.
Explore Tours to Coiba National Park →
Protecting a Small Island
Afuerita’s size makes its protected environment especially easy to underestimate. The ecological importance of an island doesn’t stop at the waterline; the surrounding reefs, sediments and shallow marine habitats are part of the same ecosystem.
Visitors exploring the area should avoid touching coral and other marine organisms, maintain a respectful distance from wildlife and never collect shells, rocks or animals.
Divers should maintain good buoyancy control to avoid damaging the bottom, particularly around shallow reefs and sensitive benthic habitats.
Small Island, Big Discovery
Afuerita may occupy only a tiny corner of Coiba National Park, but its story illustrates something much larger about the archipelago.
A small subtidal flat beside this little island produced an animal scientists had never formally described before—and ultimately an entirely new genus. Discoveries like this demonstrate how much remains to be learned about the biodiversity hidden within Coiba’s protected waters.
Afuerita is proof that in Coiba National Park, even the smallest islands can have an important story to tell.
Explore the Islands of Coiba
Afuerita is one of 38 smaller islands and island territories surrounding Isla Coiba. Together, their forests, rocky shores, reefs and surrounding Pacific waters create the extraordinary mosaic of habitats protected within Coiba National Park.
Explore the Islands & Reefs of Coiba National Park → | Discover Canal de Afuera → | Explore Ranchería Island →
