El Camino de Costa Rica is a 280 km, 16-day walking trail that crosses Costa Rica from coast to coast. This trail offers a unique opportunity to explore the diverse ecosystems of Costa Rica, which are home to a rich variety of flora, fauna, and funga. The trail crosses a country known for its biodiversity, including over 9,000 plant species, approximately 900 bird species, 50 hummingbird species (the largest per square feet of any country in the world) and 400 native bee species.
The work of Asociación Mar a Mar in environmental education and reforestation is crucial in preserving this biodiversity and promoting sustainable development in the communities along the trail. Through their efforts, they are not only protecting the environment, but also empowering local communities, and fostering a deeper connection between people and nature.

Ecosystems and Conservation areas
El Camino de Costa Rica passes through several conservation areas and borders national parks, enriching the hikers’ experience of nature. In the maps below, you can see the biological corridors and protected areas that El Camino de Costa Rica traverses.


You can choose whether to visit El Camino de Costa Rica as a solo hiker or in a group… one stage at a time, or as a single cross-country journey… and as a self-guided experience, or with a guide.
Flora
The flora along El Camino de Costa Rica is incredibly diverse, reflecting the country’s varied climates and ecosystems. From lush rainforests to dry tropical forests, the trail passes through numerous habitats, each with its own unique plant species. Some of these notable species include:
- Epiphytes: Rainforest plants that grow on other plants, including abundant orchids and bromeliads.
- Hardwood Trees: Tropical forest species like mahogany and cedar.
- Medicinal Plants: Many medicinal plants such as the guava tree, whose leaves are used to treat various ailments.


Fauna
El Camino de Costa Rica also boasts of diverse fauna, with numerous species of mammals, birds, reptiles, and amphibians. Some of the most noteworthy wildlife include:
Mammals: Howler monkeys, sloths, and jaguars can be found in the forests along the trail. Monkeys and sloths are the most easily seen. These can be seen in Sections 1, 2, at times in Section 12, and then again in section 16.


Birds: Costa Rica is a birdwatcher’s paradise, with species like the resplendent quetzal, toucans, and scarlet macaws. Birding tours are available in several places along El Camino de Costa Rica. A large number of the 50 different species of hummingbirds can be seen along El Camino de Costa Rica, particularly in sections 12 and 13.
Reptiles and Amphibians: The trail is home to various species of snakes, frogs, and lizards, including the famous red-eyed tree frog. Under the careful guidance of the indigenous guides, one can sometimes see Fer-de-Lance snakes, one of the most poisonous. They are not aggressive and can be observed at a distance with care.


Insects-Bees: A large variety of colorful and unique insects can be seen along the route. In particular, we are making bee tours – and more specifically tours of native bees– available to hikers. Costa Rica is home to over 400 species of native wild bees. Mar a Mar has a program to develop native and solitary bee hives and tours in at least 6 communities.
Our hikers support sustainable conservation and travel in the heart of Costa Rica by visiting our rural entrepreneurs, spreading the word about El Camino de Costa Rica, donating, and fundraising.
Funga
The funga or fungal diversity along El Camino de Costa Rica is also noteworthy. Fungi play a crucial role in the ecosystem, aiding in decomposition and nutrient cycling. Some of the notable fungi include:
- Mushrooms: Various species of mushrooms can be found along the trail, some of which are edible, and others that are used in traditional medicine.
- Lichens: These symbiotic organisms, which are a combination of fungi and algae, are commonly found on trees and rocks along the trail.
Mar a Mar foments educational tours related to the importance of funga in the ecosystems and collaborates with other organizations in providing these to interested hikers.

