To begin our Patagonia tour, fly to Porvenir in Tierra del Fuego. IE’s naturalist guides may also be able to point out the common South American sea lion or playful pods of Peale’s dolphin in the waters. Drive along the shores of Bahia Inutil — “Useless Bay” —watching for an array of wildlife including guanaco, southern grey fox, upland goose and Chilean flamingo. Arrive at the private Parque Pinguino Rey, where we visit the world’s most accessible colony of king penguins. Taking advantage of excellent feeding conditions, king penguins began breeding here in 2011, and IE guests enjoy opportunities to observe and photograph the penguins. Fly back to Punta Arenas late this afternoon. (B,L,D)

Take a boat to Magdalena Island to visit the famous Magellanic penguin rookery. Your Expedition Leader will be on hand to talk about their ecology. By noon we will visit 'Estancia Cerro Negro', a typical working sheep-farming station, where we will see of a shearing and sheep dog demonstration and a delicious Patagonian-style barbecue. Depart for the picturesque coastal town of Puerto Natales, where there are gorgeous vistas of the fjord 'Ultima Esperanza' (the 'Last Hope'). Spend two nights at Hotel Remota. From here venture out to Mylodon Cave Nature Reserve, an outstanding natural formation that sheltered a large number of long-gone Pleistocene mammal species, including the Giant Ground-Sloth or Mylodon, about 12,000 years ago. At Cerro Benitez you go up through the forest of ñirres (nothofagus antarctica) y lengas (nothofagus pumilio) where condors can appear so close that you may hear the sound of their wings. Pass several lagoons as you walk to a cave where paintings are found. (B,L,D Daily)

Sunrise paints the park's granite towers red — a great start to days of nature hikes in this secluded area. Hike through the Nothofagus forest, watching for fox, Magellanic woodpecker, Chilean flicker and Austral parakeet. Cruise along Grey Lake before exploring the area on foot. Grey Glacier is one of the nearly 50 outlet glaciers originating from the massive Southern Patagonian Ice Field. Continue exploring the alkaline pons and reed-fringed lagoons. As we explore, watch for herds of guanaco, lesser rhea and soaring Andean condor. Spend two nights at Hotel Lago Grey. (B,L,D Daily)

Travel across the mountains to El Calafate today. At the eastern corner of Sarmiento Lake, we will reach a location that commands the most incredible views of the towering peaks of Las Torres. As we travel you’ll watch for herds of guanaco, the curious-looking lesser rhea and impressive Andean condors soaring along the road. By noontime we will drive to Cerro Castillo, located along the border and from here you’ll continue to the picturesque town of El Calafate in time for check in and dinner at Hotel Kau Yatun.  (B,L,D)

Spend the last full-day of your Patagonia tour discovering the wonders of Los Glaciares National Park. Designated as a park in 1937 and declared an UNESCO World Heritage Site in 1981, this spectacular park’s three major features are its majestic mountains, immense lakes and of course, the glaciers themselves. The most celebrated of these is the famed Perito Moreno Glacier. This breathtaking cathedral of ice is still advancing, with a three-mile wall plunging into the Channel of Icebergs. Earlier in 2012, a huge chunk of the glacier calved from Perito Moreno, collapsing into the sea. The area is astonishing, with Magellanic forests and orchids growing so close they seem to touch the face of the glacier. Led by our expert naturalist, search for Andean condor and buff-necked ibis while you listen to this massive glacier crack and calve giant icebergs into the lake. The wind-swept steppes, temperate forests and emerald lakes of Los Glaciares are also home to Magellanic woodpecker, Magellanic plover and other birdlife of the subantarctic woodlands. (B,L)

Our small-group adventure ends in El Calafate after a tasty breakfast. Depart on independent flights home. You may also choose to join our exciting Chilean Fjords extension in Ushuaia or other extensions to complete your experience. (B, Meals Aloft)