A full-day drive from Santiago delivers vivid turquoise water, steep granite walls and accessible high-Andean viewpoints at El Yeso Reservoir. This guided tour pairs geology and local flavor—historic tunnels, artisan chocolate and a picnic—into a single, manageable mountain escape.
More ways to explore the area's outdoor wonders
You arrive on a clear Andean morning and the road climbs, shedding the city's heat as the canyon narrows and the mountains begin to speak in rock and ice. Turquoise water waits ahead—El Yeso pushes its color against the grey of granite, daring you to look away. Guides from Morandé steer, point out folds in the mountains, and open a picnic as the wind rearranges loose sheets of cloud.
Difficulty
moderate
Duration
8–9 hours
Fitness Level
Suitable for people able to spend a full day on their feet and handle short easy walks at moderate altitude; not strenuous but expect uneven ground at viewpoints.
Wildlife
History
The Tinoco Railway Tunnel dates to 1914 and reflects early 20th-century efforts to connect Santiago with coastal routes; transportation choices shaped settlement patterns in the Maipo canyon.
Conservation
El Yeso is part of the water supply system for greater Santiago—stay on marked trails, pack out waste, and follow guide instructions to minimize impact on fragile alpine vegetation.
Reserve your spot on the Outdoor Adventure Maipo Drawer and Gypsum Reservoir today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Acclimatize before you go
Spend a day in Santiago or at low elevation before the tour to reduce mild altitude effects once the road climbs above 2,000–2,500 m.
Layer for midday swings
Temperatures shift quickly—bring a windproof shell and a warm mid-layer even if the morning looks mild.
Hydrate and snack
Carry at least 1–1.5 L of water and small snacks for the day; guides provide a picnic but personal hydration keeps you comfortable on walks.
Protect camera gear
Wind and spray from the reservoir can be abrasive; use a weather cover or ziplock and carry spare batteries in an inner pocket.
Windproof shell
Blocks chilly Andean gusts at exposed overlooks and keeps you comfortable during picnic stops.
Sturdy walking shoes
Grippy, ankle-supporting shoes handle short uneven trails and gravel viewpoints.
Water bottle (1–1.5 L)
Keeps you hydrated at altitude between guide-provided refreshments.
Sunscreen and sunglasses
High-elevation sun is intense; protect skin and eyes during midday stops.