Laguna El Cristal is a large body of water covering approximately 1,500 hectares, located near the town of Calchaquí in the Vera department, toward the center-east of Santa Fe province, Argentina, at roughly 30°01′S 60°03′W. The laguna is known for its clear, crystalline waters and sandy beaches, set within an extensive belt of native forest that supports a variety of autochthonous wildlife.

The laguna sits within the Reserva Balneario El Cristal, a protected area established in 1992 under Ministerial Resolution 105/92, with the specific objective of preserving native flora and fauna and providing space for educational, wildlife observation, and recreational activities. The reserve itself covers approximately 15 hectares and forms part of a broader protected complex of nearly 12,000 hectares that includes the neighboring provincial reserves La Norma, El Estero, Don Guillermo, and Loma del Cristal. The surrounding native forests are home to wildlife typical of the Espinal ecoregion. The area also holds archaeological significance, with ceramic fragments and other evidence of pre-Hispanic settlement found along the shoreline.

Paddlers can access the laguna through the balneario El Cristal complex, which is managed by the municipality of Calchaquí. Kayaking and paddleboarding are available at the site, and rentals and beginner instruction can be arranged on-site. Motorized craft including motorboats and personal watercraft also operate on the laguna, which paddlers should factor into their planning. Fishing is a popular activity and draws visitors throughout the year.

The complex offers camping areas (a permit is required in advance), restrooms, barbecue facilities with water access, shaded picnic areas, and a canteen. Swimming is permitted, with park rangers present to provide guidance.

One important consideration for trip planning is water level variability. The laguna has experienced significant drought conditions in recent years, at times reducing water levels dramatically. Prospective visitors should verify current water levels before traveling, as conditions can change substantially between seasons. Road access infrastructure has also been subject to improvement works, with a provincial access road project at 93% completion as of mid-2024.

To reach the laguna by road from Santa Fe city, take Ruta Nacional 9 and then Ruta Provincial 11 past Gobernador Crespo, then turn right and continue approximately 25 kilometers. The site is located roughly 225 kilometers from the Santa Fe airport.