Audio Guide of Ullum Dam and Reservoir

The Ullum Dam and Reservoir is open year-round, 24 hours a day, as it is an outdoor natural and recreational area. To get there, you can take National Route 40 from San Juan, about 30 km to the south; a private vehicle or taxi is recommended, and you should check road conditions on the official San Juan tourism website: San Juan Tourism.

Entry to the Ullum Dam and Reservoir is free for visitors, as it is a public area managed by the province. However, if you take part in activities such as kayak rentals or fishing, additional fees may apply; check updated prices at the San Juan tourist information center by phone at +54 264 429-5200.

It is recommended to set aside at least 2 to 3 hours to enjoy the reservoir, including a walk along the shores, taking in the views, and perhaps a picnic. If you plan to do water activities, extend your visit to half a day for a fuller experience.

Ullum Dam, built in 1953 on the San Juan River, is a key project for vineyard irrigation and hydroelectric generation in the Cuyo region, driving the agricultural development of San Juan. Culturally, it represents 20th-century Argentine engineering and is a landmark site for local ecotourism.

The best time is during the austral summer, from December to March, when the weather is warm and ideal for outdoor activities, although early mornings and late afternoons are preferable to avoid intense heat. In spring or autumn, visits are quieter and the landscapes are vividly green.

The main reservoir area has paved paths and adapted access in picnic areas and viewpoints, making movement easier for wheelchair users; however, some rocky beaches may be challenging. For more details about accessibility features, contact the San Juan tourism office: Accessibility Information.

Nearby, about 20 km away, is Ischigualasto Provincial Park, also known as Moon Valley, famous for its prehistoric geological formations. In the city of San Juan, the History Museum and Zonda are ideal for a combined day trip. Explore routes at TripAdvisor Ullum for more ideas.

Bring sunscreen, water, and a hat because of San Juan’s sunny climate, and consider renting fishing or boating equipment if you are interested; respect environmental rules by not leaving any litter behind. For personalized audio guides, visit IAudioguia to enrich your experience with stories about the site's history.