Near the center of Argentina's vast 4,900 km (3,045 mile) stretch of South Atlantic coastline lies the Valdes Peninsula, a veritable cornucopia of incredible marine life and one of a kind adventures. Known primarily for its whale watching, this UNESCO World Heritage Site is home to a multitude of other sea dwelling creatures as well, including seals, sea lions, orcas (aka killer whales), dolphins, penguins and more birds than you can shake a stick at. It just so happens that Valdes also constitutes one of Argentina's premier snorkel and scuba diving locations (especially the revered Golfo Nuevo), with sites that cater to divers of all skill levels and reveal a crazier selection of marine life than you're likely to see in the Caribbean.
Your gateway to this biologically diverse landmass will likely be the city of Puerto Madryn. From here, the options are almost as varied as the marine life: drive the 400 km stretch of gravel road that circles the peninsula, book a guided hike to places like Punta Norte to learn more about the innumerable species that call this place home, head out on a boat/kayak, stay inland on a mountain bike, or take to the dunes in a little activity we like to call "sandboarding" (wait...you mean that's already a thing?). Either way, it's safe to call this a shouldn't miss addition to any adventurous Argentinian itinerary.