Fifteen km (9 miles) west of San Juan, this huge hydroelectric complex—also known as the Ullum Valley Dam Reservoir—offers grand views of the Río San Juan. Windsurfing, sailing, swimming, rowing, fishing, and diving keep San Juaninos cool on hot summer days. You can rent boating equipment at the Bahía Las Tablas sports complex, just beyond the dam, where you'll also find a café and change cabins. There's a public beach at the Embarcadero turnoff. You can go white-water
rafting and kayaking on the San Juan, Los Patos, and Jachal rivers. Fishing in Las Hornillas River can be arranged through local tour companies.
San Juan, San Juan, 5400, Argentina