The lake is the second largest in Peru by surface area, following Lake Titicaca.
The Junín grebe (Podiceps taczanowskii) is a flightless bird found exclusively within this reserve.
The reserve acts as a critical carbon sink due to its extensive peat bogs and wetland vegetation.
The lake water is primarily fed by rainfall and glacial runoff from the surrounding mountain ranges.
The site was designated a Ramsar Wetland of International Importance in 1997.
Reserva Nacional de Junín is a high-altitude protected area centered around Lake Junín, the second-largest lake in Peru. Situated at an elevation of approximately 4,100 meters, it encompasses a vast wetland ecosystem crucial for migratory birds and local biodiversity. The reserve protects the Junín grebe, an endangered bird species endemic to this specific lake. The landscape is defined by vast expanses of totora reeds and high-altitude Andean puna grasslands. Established in 1974, the site serves as a vital water regulator for the Mantaro River basin. Visitors can observe the unique avian population, including Andean gulls and flamingos, in their natural habitat. The environment is harsh and cold, influenced by the surrounding Andean peaks.
The shoreline viewpoints near the marshy borders of the lake, which frame the Junín grebes against the water.
Acclimatize to high altitude for at least two days in a lower town before visiting.
Wear multiple layers of windproof, insulated clothing due to extreme temperature fluctuations.
Bring high-factor sun protection, as UV radiation is significantly stronger at this elevation.
Do not attempt strenuous physical activity upon arrival due to the risk of severe altitude sickness.
Maintain silence to avoid disturbing nesting birds; do not remove any flora or fauna.
