From an almost-lost world concealed in a Vietnam jungle to an off-the-grid Arctic basecamp with a year-round population of zero, there are still nooks and crannies on our planet where few have ventured. Check out six of the most remote places on Earth – but don’t expect Google Maps to help you here.
Trek inside the largest cave on Earth, Hang Son Doong. Hidden in Vietnam’s Phong Nha-Ke Bang National Park, the “Mountain River Cave” opened to the public in 2013 and is so vast that it has two jungles, a river and multiple microclimates. Adventure tour company Oxalis operates the only expeditions, in partnership with the British Cave Research Association.