Valdes Peninsula is a peninsula along the Atlantic coast in the northeast Chubut Province, Argentina. Its size is about 3,625 km². Most of the peninsula is barren land with some salt lakes. The largest of these lakes is at an elevation of about 40 meters below sea level.
The Valdes Peninsula is an important nature reserve, which was listed as a World Heritage Site by UNESCO in 1999. The coastline is inhabited by a number of marine mammals, including sea lions, elephant seals, and fur seals. Southern right whales can be found in Golfo Nuevo and Golfo San José, which are protected bodies of water located between the peninsula and the Patagonian mainland. These baleen whales come here between May and December, in order to mate and give birth, because the water in the gulf is quieter and warmer than in the open sea. Orcas can be found in the open sea off the peninsula.
The inner part of the peninsula is inhabited by ñandúes, guanacos, and maras. At least 181 bird species, 66 of which are migratory, live in the area, including the Antarctic pigeon.
Information based on http://en.wikipedia.org/wiki/Valdes_Peninsula