Penguin Colony at Punta Tombo, Puerto Madryn

Far down the Atlantic coast in Argentine Patagonia exists one of the most incredible sites in the region: Punta Tombo. This tiny protected area (less than a square mile) is home to the largest colony of Magellanic penguins in Latin America. A boat tour of Punta Tombo embarks from the fishing village of Puerto Rawson, which is located about 31 miles (50 km) south of Puerto Madryn. The trip down the Patagonian coast is rife with marine life sightings, too. From the deck, it's not uncommon to see black-and-white Commerson dolphins, which are regarded as the smallest dolphin species in the world. 

The tour continues to the aforementioned penguin colony. Exact estimates of how many Magellanic penguins live here vary, but at one point it was home to over a million. The population might hover near that figure even today, as everywhere you look you'll see countless penguins. It's even possible to explore the area on foot amongst these cute, waddling critters. It's prohibited to touch the penguins or otherwise engage with them, but it's perfectly fine to snap photos.