A few kilometers north of San Clemente del Tuyú are several protected areas, including Reserva Natural Municipal Punta Rasa which is managed by the environmental NGO Fundación Vida Silvestre. At the tip of Cabo San Antonio, where the Río de la Plata meets the Atlantic, the park is essentially a beach with a wet pampas grassland beyond it. A path leads through the park, which is visited by more than 100,000 migratory birds each year - some from as far off as Alaska.
This reserve and its neighboring parks area are some of the last protected areas of pampas grassland in the province. There's no public transport to the park, 10km from the center of town, and no visitors center. A remise will cost around Arg$18.