Nestled in the Precordillera foothills just 65 kilometers southwest of Mendoza City, the Potrerillos Dam and Reservoir (Embalse Potrerillos) is the province’s most iconic mountain-lake playground. Sitting at 1,380 meters above sea level against the snow-dusted backdrop of the Cordón del Plata, this turquoise expanse of glacial meltwater offers travelers a dynamic mix of water sports, scenic lakeside paradores, and gateway access to charming Andean hamlets.
Quick Decision Guide: Potrerillos at a Glance
Whether you are planning a half-day scenic drive from Mendoza or spending an active weekend in the mountain valleys, here is how the primary sectors around the reservoir compare:
| Sector / Area | Primary Highlights | Atmosphere | Facilities | Best For |
|---|---|---|---|---|
| Perilago Sur & Paradores (RP 82 / Coastal Road) | Lakeside food trucks, kayak & SUP rentals, panoramic photo decks | Lively, social weekend gathering spot | Restrooms, casual dining, equipment rental operators | Day-trippers, beginner paddlers, casual picnickers |
| Asociación Mendocina de Windsurf (AMW) | Consistent thermal winds, private club facilities, staging area | Sport-focused, outdoor community | Clubhouse, rigging lawns, certified instruction | Windsurfers, kitesurfers, advanced sailors |
| Gran Hotel Potrerillos (Upper Lookout) | Historic Andean architecture, lush parkland, gourmet winery dining | Upscale, serene, heritage retreat | Fine dining restaurant, manicured gardens, hotel rooms | Couples, leisurely lunches, sunset drinks |
| Mountain Hamlets (El Salto, Las Vegas, Valle del Sol) | Alpine cabins, microbreweries, trailheads into Cordón del Plata | Rustic, tranquil Andean village life | Cabins, artisanal cafes, grocery stalls | Overnight stays, hikers, nature lovers |
Water Sports on the Reservoir
The reservoir is fed by the rushing waters of the Mendoza River, which drains the highest glaciers of the Andes. Because the water comes directly from alpine snowmelt, it remains crisp year-round. While motorboats are banned, human-powered and wind-driven water sports thrive across the perilago:
- Stand-Up Paddleboarding (SUP) & Kayaking: Mornings on the reservoir are typically calm, with mirror-like water reflecting the mountain peaks. Local paradores offer on-site rentals of sit-on-top kayaks and inflatable paddleboards, complete with certified life jackets.
- Windsurfing & Kitesurfing: By early afternoon, strong thermal winds regularly sweep down the valley from the Cordón del Plata. The southern shore, anchored by the Asociación Mendocina de Windsurf, becomes a premier staging ground for wind-driven sports.
- Sport Fishing: The reservoir is home to rainbow trout, brown trout, and silverside (pejerrey). Fishing is permitted strictly during the official season (typically November 1 through April 30) and requires a valid provincial fishing permit (carnet de pesca deportiva) issued by the Mendoza Department of Renewable Natural Resources.
For more detailed technical logistics and river running, check our complete guide to kayaking and rafting in Mendoza or explore the official Potrerillos Reservoir attraction page.
Essential Safety Rules: What You Must Know
Because Potrerillos is a functional hydroelectric and water-storage reservoir with deep sub-surface drop-offs and freezing water temperatures, provincial authorities enforce strict regulations:
- Swimming Is Strictly Prohibited: Bathing and casual swimming are completely forbidden along the entire coastline of the reservoir (prohibido bañarse). Sudden cold-water shock, steep mud ledges, and underwater currents make open swimming extremely dangerous.
- No Motorized Watercraft: To safeguard the purity of Mendoza’s primary drinking water source, internal combustion engines and electric motorboats are strictly barred. Only sails, oars, paddles, and boards are permitted.
- Life Jackets Are Mandatory: Whenever you step onto a kayak, paddleboard, or sailboat, you must wear a certified flotation vest (chaleco salvavidas). Wetsuits (neoprene) are strongly recommended due to cold water temperatures.
- Stay Clear of the Dam Wall: A strictly marked safety exclusion zone surrounds the concrete dam intake tower and spillway wall. Do not paddle near the barrier buoys.
How to Get to Potrerillos: Routes and Driving Tips
Reaching Potrerillos from Mendoza City is straightforward and takes between 50 and 70 minutes by car. You have two distinct, highly scenic driving options:
- The Direct Highway (Ruta Nacional 7): Take RN 7 west from Greater Mendoza. This four-lane divided highway transitions into a high-mountain road passing through the Precordillera, offering sweeping views as you crest the hill and see the reservoir opening below. This is the fastest, smoothest route for day-trippers.
- The Scenic Circuit via the Cacheuta Tunnel (Ruta Provincial 82): For an unforgettable loop, take RP 82 through the spa village of Cacheuta. In 2018, the province opened a modern 420-meter vehicular tunnel cutting through the mountain ridge, connecting Cacheuta directly to the southern perilago of Potrerillos. We recommend driving out via RN 7 and returning via the Cacheuta tunnel to experience both landscapes in a single day.
- Public Transportation: The regional bus operator Buttini runs scheduled daily services from the central Mendoza Bus Terminal (Terminal del Sol) to Potrerillos village, El Salto, and Las Vegas. Verify current timetable departures at the terminal ticket counters before departing.
Exploring Beyond the Water: Mountain Hamlets and Trails
The Potrerillos valley extends far beyond the shoreline. South and west of the lake lie several peaceful mountain hamlets (villas de montaña) that offer cooler temperatures, pine groves, and genuine alpine character:
- El Salto & Quebrada del Salto: A favorite retreat filled with wood-and-stone cabins, artisanal microbreweries, and trailheads. A moderate 2-hour hike takes you up the canyon to the picturesque El Salto waterfall. Climbers can also find bolted sport routes on the canyon’s volcanic crags (see our Mendoza rock climbing guide).
- Las Vegas: Located slightly higher in elevation along RP 89, Las Vegas features quiet residential streets, horse ranches offering guided rides along mountain ridges, and cozy tea houses serving homemade tortas and alfajores.
- Vallecitos: Perched at 2,900 meters at the end of the winding mountain road, Vallecitos is a historic Andean ski and mountaineering center. Today it serves as the basecamp for trekking non-technical 4,000- and 5,000-meter peaks in the Cordón del Plata range.
Frequently Asked Questions
Can you visit Potrerillos on a day trip from Mendoza City?
Absolutely. Because the drive takes under an hour, Potrerillos is one of the easiest and most popular day trips from Mendoza. You can spend the morning paddling on the reservoir, have lunch at a perilago food truck or Gran Hotel Potrerillos, hike in El Salto in the afternoon, and return to the city by evening.
Is there an entrance fee to access Potrerillos Reservoir?
No, access to the public perilago shorelines, scenic viewpoints, and roadside recreation spots is free of charge. You only pay for private amenities, such as parking in dedicated operator lots, food truck meals, equipment rentals, or club entry fees at private sailing venues.
What should I pack for a day at Potrerillos?
Pack layers, as Andean mountain weather changes quickly. Bring high-SPF sunscreen, polarized sunglasses, a windbreaker jacket, plenty of drinking water, and sturdy closed-toe shoes if you plan to explore shoreline trails or rocky bays.
Related Mendoza Travel Resources
Continue planning your Andean itinerary with our curated guide to things to do in Mendoza, discover local stays across our where to stay in Mendoza guide, or browse the official Potrerillos Reservoir attraction listing.