Embalse El Yeso

Embalse El Yeso is a high-Andean reservoir at about 2,500 m in the Cajon del Maipo, roughly 93 km south-east of Santiago in Chile's Metropolitana region. The turquoise water, framed by glaciers and peaks, makes it one of the best-known photo stops in the mountains near the capital. The trip takes about 3 hours by car: Ruta G-25 runs through the canyon via San Jose de Maipo to San Gabriel, then 18 km of gravel road leads to the dam, which is passable without a 4x4 in dry weather. Public transport does not reach the reservoir, so visitors either drive or join a mountain day tour from Santiago, priced at about CLP 60,000-90,000. Access is gated and often closed from May to October because of snow, so confirming conditions in San Jose de Maipo before continuing is sensible. Viewing the reservoir is free. Once there, visitors walk along the shore and the dam wall, photograph the glacier-fed water and mountains, and picnic in the open landscape. There are no restaurants at the reservoir, so food and water must be carried or bought on the way in San Jose de Maipo or San Alfonso. A sensible one-day plan leaves Santiago early, stops for a coffee and supplies in San Jose de Maipo, reaches El Yeso by late morning when light is strong on the water, and allows an hour or two at the shore before the long drive back, ideally leaving by mid-afternoon so the gravel section is covered in daylight. The best window runs from November to March, when snow has cleared and the road is open. Altitude, strong sun and sudden wind are common, so layers, sunscreen and a hat are useful. Because the day is long and mostly spent in transit, travellers often combine the reservoir with a stop at the village on the return.