Begin your easy half-day excursion in Ushuaia, the world's southernmost city. Sightsee through the city passing through the Pipo River Valley into Tierra del Fuego National Park. This pristine wilderness reserve protects the southern area of the sub-Antarctic forest is the subject of an eye-popping drive with abundant photo opportunities and three major park attractions. The first stop is Ensenada Bay overlooking the fabled Beagle Channel. Named after the ship that carried English naturalist Charles Darwin, the channel boasts towering snow-capped mountains and is dotted with islands of all shapes and sizes. Continuing to Roca Lake you'll enjoy a guided nature walk. Walk in the footsteps of history as you explore a portion of this mythical coastline. Then, at Lapataia Bay, you'll arrive at the last stop on the Pan-American Highway, a marvel of civil engineering that begins in Alaska and stretches nearly 12,000 miles across two continents.