Read more: 15 Most Breathtaking Destinations To Swim With Turtles, According To Travelers Altitude sickness tends to hit at as low as 8,202 feet above sea level. (For comparison, people climb over ...

AN ADVENTUROUS Musselburgh family are celebrating reaching base camp on Mount Everest, the highest mountain in the world. Clare Burton, her husband Greg and their two children, Leo, 12, and Daisy, 11, ...

Commercial planes can fly up to eight miles high, but that pales in comparison with the highest-soaring military planes, ...

There are few sights in the entire world–few iconic horizons–that can make you stop in your tracks and struggle for words.

Big wave surfing and mountaineering might seem like different pursuits of nature — one fluid and one solid — but the have ...

Jenni Lowe-Anker founded the nonprofit after the death of her husband Alex Lowe. Now, she's passing the torch to Melissa ...

Jost Kobusch has been in Nepal this fall, preparing again for his long-term project, an eventual Everest winter solo.