It contains diverse flora and fauna in a lush, mountainous rainforest environment with some of the highest rainfall in the world, at up to 10,000 millimetres (390 in) annually.

There is accommodation for visitors, and ecotourism services are provided by the local indigenous people and members of the coastal Afro-Colombian communities.

About 81 species of mollusks have been reported, including Eastern Pacific giant conch (Lobatus galeatus) and ark clams of the genus Anadara which provide food to the local communities.

[2] Trees in the park include timber species as cohíba, the symbol of the Chocó Department, níspero, comino, abarco, ceiba, carbonero, guayacán, caracolí (used for building coastal boats) and oquendo (used by the black and indigenous communities for making crafts).

There are also palms such as chontaduro and mil pesos that are important sources of food for the local populations, and iraca which is used to make crafts.

[1] Fauna in the forest include jaguar (Panthera onca), cougar (Puma concolor), brocket deer (genus Mazama), white-lipped peccary (Tayassu pecari), collared peccary (Pecari tajacu), mantled howler (Alouatta palliata), black-headed spider monkey (Ateles fusciceps), giant anteater (Myrmecophaga tridactyla), brown-throated sloth (Bradypus variegatus), lowland paca (Cuniculus paca) and Central American agouti (Dasyprocta punctata).

From Bahía Solano there is a road to the village of El Valle, and then a walk to the park through humid tropical forest that takes about three hours.

The park may also be reached by boat from Buenaventura to Bahía Solano, Nuquí or El Valle, a trip that takes about 26 hours.

[6] Visitors must carry identification and medical insurance, and must have been vaccinated for tetanus and yellow fever at least ten days before visiting the park.