The area is part of the San Carlos de Apoquindo and Quebrada de Macul conservation corridor.
The waterfall flow is highly dependent on recent rainfall and mountain snowpack, often appearing as a trickle during late summer months.
The park serves as a natural drainage basin for the Peñalolén district, vital for local watershed management.
The vegetation includes native Chilean species such as Quillay, Litre, and Peumo trees.
The San Juan Waterfall, specifically the first fall, is situated within the Parque Natural Quebrada de Macul in the foothills of the Andes. It is a seasonal cascade fed by the snowmelt and rainfall runoff of the mountain slopes in Peñalolén. The surrounding terrain consists of sclerophyllous forest, a distinct ecosystem characterized by drought-resistant vegetation. Access involves a steady uphill trek along the Quebrada de Macul stream path. The waterfall marks a common turnaround point for hikers who do not intend to complete the full ascent toward the mountain peaks. The trail traverses rocky paths and exposed areas with limited canopy cover.
The rocky base directly facing the primary flow of the waterfall.
Bring at least two liters of water, as there are no potable water sources along the trail.
Use trekking poles to manage the loose gravel and steep incline during the descent.
Check local weather reports specifically for the mountain range, as conditions can differ significantly from the city center.
Attempting the hike during high-heat alerts or immediately after heavy winter storms when trails may become hazardous due to mudslides.
Park access may be restricted during periods of extreme high temperatures or forest fire risk; always check the municipal park status before arrival.
Pack out all trash, stay strictly on marked paths to prevent erosion, and do not feed local wildlife.
