Of course, there is Península Valdes, the main reason people stay in Puerto Madryn but if you’re in the area then you’ll also want to check out Trelew and Punta Tombo.

Jean Roebben, a 29 y.o. guy from Belgium, recorded parts of his trip around Latin America in a nice blog. His entry on Puerto Madryn, Península Valdes, Trelew y Punta Tombo is a good example. The last photo of the penguin on that page is incredible!