The dam is constructed using a rockfill technique with a clay core to ensure structural integrity.
The reservoir's creation was part of a provincial water management plan to promote tourism in the Los Molles area.
The water depth varies significantly, with a deep zone near the dam wall and shallow, sandy areas near the beach.
The site is a major nesting ground for diverse bird species, justifying its indigenous name.
The surrounding landscape is part of the San Luis Pampa eco-region, characterized by high-altitude grasslands.
Dique Piscu Yaco is a man-made reservoir located in the Comechingones mountain range in San Luis, Argentina. The dam features an artificial beach with fine sand, uncommon for the region's mountainous topography. Water sports such as kayaking and stand-up paddleboarding are permitted in designated zones. The name Piscu Yaco translates from the Comechingón language as 'water of the birds.' The reservoir is fed by water originating from the mountain streams of the surrounding Sierras. Visitors can access a specialized area for swimming that is cordoned off from motorized watercraft. A paved road provides access to the shoreline, which is surrounded by native flora and shrubland. The site serves as a regional hub for outdoor recreational activities during warmer months.
The elevated viewpoint on the access road providing a full panoramic vista of the blue water against the mountain backdrop.
Bring a portable sun shelter, as natural shade along the beach area is extremely limited.
Wear water shoes, as the lake bed can transition quickly from soft sand to rocky surfaces.
Plan to carry out all your own trash, as waste management services are limited in this remote location.
Do not attempt to swim outside of the marked buoy zones, as deep water and hidden underwater obstacles exist near the dam wall.
The area is most active during the summer season; off-season accessibility may be affected by heavy rain.
No loud music or motorized vehicles on the beach; swimwear is expected only in the designated water zones.
