Costa Rica’s rivers and streams form dynamic freshwater systems that flow across every ecological region, from mountain cloud forests to coastal lowlands. These lotic (flowing water) habitats are essential for biodiversity, hydrological balance, and ecosystem connectivity. They support a wide array of aquatic and riparian species, provide vital corridors for wildlife, and supply drinking water, irrigation, and hydroelectric energy. The diversity of stream types — from fast, oxygen-rich mountain torrents to slow, meandering lowland rivers — shapes highly specialized aquatic communities.
Braulio Carrillo National Park (Río Sucio)
Tenorio Volcano National Park (Río Celeste)
Barbilla National Park (Caribbean tributaries)
Piedras Blancas National Park (southern Pacific rivers)
Dry season (December–April) for clear water; rainy season for peak flow and waterfall activity
Rivers are critical biological corridors connecting highland and lowland ecosystems. Many Costa Rican amphibians, insects, and fish depend entirely on clean, flowing water. These systems also serve cultural and economic functions for local communities.
