Oriol Alamany / Lenga Beech forest (Nothofagus pumilio) and Frances Glacier on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Lenga forest (Nothofagus pumilio) in Ascensio river valley on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Staffan Widstrand / Reindeer trekking with Saami, Lapland, Sweden, Model released

Staffan Widstrand / Silhouette of ecotourist Reindeer trek camp site with Saami, Lapland, Sweden.

Enrique Lopez-Tapia / People relaxing at Machame Camp (3010 m) on Mount Kilimanjaro trek, Tanzania, October 2008

Christophe Courteau / Early morning briefing at the Kinigi Visitor Center before going on Gorilla Trek. A maximum of 8 people are allowed to visit the gorillas with a guide, Volcanoes National Park, Ruhengeri, Rwanda.

Oriol Alamany / Los Cuernos del Paine and the Espada peaks seen from the Hostel Pehoe on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / La Espada (2500 m) and the Horns of Paine (2600 m) peaks seen from El Fances valley on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Los Cuernos mountain hut on the shores of Nordenskjold lake on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Hiker, Eulia Vicens, crossing a wooden bridge over Ascensio river on the W Trek, Torres del Paine National Park, Patagonia, Chile

Oriol Alamany / The jagged peak of La Catedral (2168 m) in the Frances valley on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006

Oriol Alamany / Mountain river near Refugio Los Cuernos hut on the W Trek, Torres del Paine National Park, Patagonia, Chile, January 2006