The name 'Cuicocha' translates from Kichwa as 'Lake of the Guinea Pigs,' referencing the islands' shape.
The caldera is considered geologically active, with seismic monitoring stations installed to track potential volcanic unrest.
The lake reaches depths of up to 200 meters in some areas.
The water is highly mineralized and has a high sulfur content, which prohibits swimming and traditional fishing.
The trail around the rim covers approximately 14 kilometers and typically takes 4 to 5 hours to hike.
Laguna Cuicocha is a 3-kilometer-wide volcanic caldera lake situated within the Cotacachi Cayapas Ecological Reserve in the Ecuadorian Andes. The lake formed approximately 3,100 years ago following a massive phreatic eruption of the Cotacachi Volcano. Two steep, forested islands, Teodoro Wolf and Yerovi, rise from the center of the lake, created by subsequent lava domes. The water surface sits at an altitude of approximately 3,240 meters above sea level. Sulfur emissions from the lake bed prevent aquatic life from thriving, contributing to the water's distinct deep blue coloration. A well-maintained trail encircles the caldera rim, offering panoramic views of the surrounding mountains, including the snow-capped Cotacachi and Imbabura volcanoes. The site is part of a protected ecological zone managed by the Ecuadorian Ministry of Environment.
The highest point on the hiking trail, offering a clear vantage of both central islands and the distant volcano peaks.
Acclimatize to the high altitude for at least two days before attempting the perimeter hike.
Bring layers, as temperatures drop rapidly when clouds move in or the wind picks up.
Carry sufficient water, as there are no natural springs or potable water sources along the trail.
Attempting to descend from the rim to the water level, which is dangerous and discouraged by park authorities.
Open daily, though park access may be restricted during periods of extreme weather or seismic activity.
Stay on marked trails to protect the fragile paramo ecosystem; littering is strictly prohibited.
