Kilimanjaro is a fulfilling achievement, not extreme by any means. The early part of the journey follows trails that ascend through the various climatic zones.
Each day you hike 3-6 hours arriving into a well- appointed tent camp that is carried ahead by the porter staff and set up for your arrival at the end of the day. At the highest camp you prepare for the summit day, a long hike through the night that greets the dawn from close to the summit. From here you can absorb the grandeur of the very high elevations.

If you climbed the second tallest mountain in the world, it would be almost impossible to resist climbing the first. Located in the Himalayan mountains in Nepal, Mount Everest is the holy grail for mountaineers and adventure seekers across the globe. Many throughout history have died trying to conquer it, but those who have succeeded garner global recognition. With climbs being supervised by trained professionals, sherpas who set up base camps, and top climbing equipment, it’s never been safer to attempt the climb. If you’re very fit and have a large enough bank account, you can experience one of the most iconic adventures in the world for an average of $64,000 per person.
Dart River Safaris offers your senses a feast of spectacular natural beauty on a journey into the wilderness of a World Heritage area.
Located just 45 minutes from Queenstown in the frontier town of Glenorchy, New Zealand, Dart River Safaris takes you to Paradise and beyond.
Located in the Swiss Alps, the Eiger's unpredictable weather, loose rock, and steep slopes have claimed the lives of more than 60 climbers, and yet its iconic 5,905-foot (1,800-meter) north face still proves irresistible. Now a new set of adventurers, wingsuit fliers, are not only climbing it but launching off it. The extreme sport is unquestionably one of the most dangerous on Earth, but perhaps that's the allure: It's the closest humans can get to true unadulterated flight.
On the far southern coast of Tasmania, Australia, jutting into one of the Earth's most unpredictable and tempestuous seas, lies a point break so remote and isolated it's reachable only by boat or an hour-long wilderness trek.
It's pretty clear that live volcanoes are unpredictable and their craters offer all sorts of inhospitable challenges: toxic gas, extreme heat, tumbling rocks, and unwarranted explosions. Just because it's insane doesn't mean that it's impossible.
When vacationing divers dip into the upper levels of Bahamas' blue holes–flooded inland caves formed originally from limestone–to take a look around, they are unwittingly close to some of the world's most dangerous diving. Farther below lies a kingdom of passageways that holds fossils and ancient formations. The very few who pass through the layer of toxic gas to reach these lower levels find pinhole passageways where a technical failure or wrong turn could spell doom and one errant fin could obliterate 10,000-year-old rock structures. But those who do venture into the watery veins of the Earth discover whole ballrooms full of tightly packed stalactites, prehistoric human remains, and fossils of now extinct crocodiles and tortoises. These caves are, quite literally, another world.
Magellan didn't at first intend to circumnavigate the planet; He was simply looking for a shortcut to the Spice Islands. Now the journey is taken in its own right, and, most recently, by a growing number of teenagers competing for the title of youngest solo circumnavigator. Still, the seas are just as tempestuous as they were centuries ago, with the ever present danger of unexpected storms and 100-foot (38-meter) rogue waves capable of snapping masts like crostini. Done alone, the experience verges on spiritual, offering an intimate understanding of the true vastness of the world and the minuteness of our humanly existence. That is perhaps why a successful solo sail feels less like a conquest and more like an allowance of passage by the grace of the sea.
Even in a land known for extremes, Siberia's Bashkaus River stands out. In a remote backwater near Mongolia, it tumbles 32 feet (8 meters) per mile for 130 miles (209 kilometers). (By comparison, the Colorado River drops eight feet (2 meters) per mile through the Grand Canyon.) The gradient churns up a maelstrom of rarely run rapids, jagged rocks, and traps known as siphons, all sandwiched between stunning but inescapable gorge walls. "It was the toughest and most rewarding experience that I have ever been through," says pro kayaker Sam Sutton, part of a 2010 Adidas-sponsored expedition (pictured). Of the few who attempt it, those who succeed reach the fabled riverside memorial built for six expert kayakers who perished there in 1976. Inside lies the Book of Legends, inscribed with the names of those who've faced one of the world's most difficult rivers–and lived to tell the tale.
