People hiking on Niesen mountain, Canton of Bern, Switzerland

Waterfall in Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal

Hiker in mist near the refuge Lavaredo, Three Peaks Nature Park, Dolomites, South Tyrol (Alto Adige), Italy

Hikers crossing a torrent on a footbridge in Zingchen gorge, Hemis National Park, Ladakh region, state of Jammu and Kashmir, India, Asia

Two hikers in high altitude winter valley on the Langtang trek in Kyanjin Gompa, Himalayas, Nepal, Asia

2 men with trekking equipment in rocky landscape, fog, rain, West Greenland, Greenland, North America