El Yeso Dam, nestled in the Andes Mountains near Santiago, Chile, is a breathtaking turquoise reservoir offering stunning panoramic views. Access can be challenging, often requiring a 4x4 vehicle due to unpaved roads; accessibility for individuals with mobility issues is limited. While solo visits are possible with proper preparation, guided tours are recommended for convenience and safety, especially concerning road conditions and altitude sickness. The best time to visit is during the summer months (December to March) when the weather is more stable, as winter brings heavy snowfall and potential road closures. Expect to spend approximately 4-6 hours to fully experience the dam and its surroundings. Costs vary depending on transportation (rental car vs. tour), but anticipate expenses for park entrance fees and potentially food and water. Be aware of the high altitude (over 3,000 meters), and take precautions to acclimatize.