Patagonia, Two Ways
From Chile's Torres del Paine National Park to the tiny Argentine village of El Chaltén at the foot of the peaks Torre and Fitz Roy (or vice versa), experience Patagonia by trekking and horseback-riding on both sides of the border in the unique style—with a focus on the journey rather than the destination—of this Santiago-based travel company. Explora: "Travesias in Patagonia, Argentina and Chile," 9 days; $5,806.
Deep Canyon Trek
The outfitter's new family adventure series takes the quintessential summer vacation—the Grand Canyon—to the next level, with a week of mule-supported backcountry hiking, including a trek through the remote Supai Village where the Havasupai people have lived for 800 years. Later, tribe members may visit your campsite to share stories about their culture and demonstrate the ancient art of building split-twig figures. REI Adventures: "Grand Canyon & Havasu Falls Family Adventure," 7 days; $2,319.
Polar Bear Country
Thanks to its conservation efforts and expert guides, the outfitter is the only one to have garnered a government permit to set up camp on this highly restricted ecosystem on the east coast of the Norwegian island of Spitsbergen. Timed to coincide with a six-week window when polar bears emerge from hibernation and ring seal pups—one of their favorite snacks—are on the coastal pack ice, this Arctic expedition combines low-impact snowmobiling, cross-country skiing, and winter camping for an intimate look at the world's largest predators in their natural habitat. Abercrombie and Kent: "Extreme Adventures Norway: On the Trail of the Polar Bear," 9 days; $14,420.
Mongolia by Horse
Immerse yourself in one of the last equine-based cultures in the world on this horse trek through the meadows and forests of Mongolia's northern Hovsgol Province. You'll be warmly welcomed by the local Tsaatan, who live in yurts and herd domesticated reindeer. Nights are spent in tents and traditional ger camps. Nomadic Expeditions: "Northern Mongolia on Horseback," 15 days; from $3,415.
Fiji Surf and Turf
Fiji may be known for its pristine white sand beaches, but thrill seekers are lured by its rugged interior. This itinerary combines the best of both worlds, with a zipline canopy tour in the Namosi Mountains, white-water rafting on the Upper Navua River (a narrow gorge known as Fiji's Grand Canyon), and a couple of leisurely days spent snorkeling or diving at the Nanuya Island Resort in the Yasawa Islands. O.A.R.S.: "Highlands to Islands: Ultimate Fiji Explorer," 10 days; $3,795.
Kids With Camels
Join a camel caravan and Berber handlers in a trek across Morocco's high sand dunes to isolated villages, stopping to look for fossils along the way or a spot of mint tea with Saharan dwellers. Sleep under the stars, book-ended by two nights in Marrakech. The trip is run with a mix of French- and English-speaking families to foster international friendship and language skills. KE Adventure Travel: "Les Petits Caravanniers Family Adventure, Morocco," 8 days; $745.
The remote eastern coast of Greenland has some of the best kayaking conditions in the Arctic. Spend two summer weeks paddling, trekking, and tent-camping under the midnight sun among its high mountains and deep fjords. Get to know residents of Inuit communities. In his downtime, outfitter founder Olaf Mather works with the United Nations to foster sustainable tourism in developing countries. Explorers' Corner: "Greenland Kayak Adventure: Kayaking, Hiking, and Camping in Eastern Greenland," 17 days; $3,890.