Tim Laman / Pulling off Tiger land leeches (Haemadipsa picta) during a hike in the rainforest, Gunung Palung National Park, Borneo, West Kalimantan, Indonesia

Tim Laman / Pulling off Tiger land leeches (Haemadipsa picta) during a hike in the rainforest, Gunung Palung National Park, Borneo, West Kalimantan, Indonesia

Pete Oxford / Pantanal cowboy guiding cattle on the three day hike to market, Mato Grosso do Sul Province. Brazil, South America December 2004

Tim Laman / Young boy aged 9, and his mother, a research scientist (both model released) hike through the rainforest. Borneo, July 2007

Tim Laman / Expedition crew members hike in the forest of Bioko Island, Equatorial Guinea, Rapid Assessment Visual Expedition, International League of Conservation Photographers, January 2008. Model released

Tim Laman / Caldera expedition members hike along the beach on the South coast of Bioko Island, Equatorial Guinea, Rapid Assessment Visual Expedition, International League of Conservation Photographers, January 2...

Jerry Monkman / Mothers taking their babies for a hike through the forest near Meadow Pond, Stephenson's Way, Groveland, Massachusetts, USA

Yva Momatiuk & John Eastcott / Man hiker, 52, in shorts, boots and hat, carrying backpack and water bottle, standing and looking ahead at the difficult and rocky broken terrain he wants to hike in, autumn noon, Badlands National Pa...

Staffan Widstrand / Reindeer trekking with Saami, Lapland, Sweden

Mark Raycroft / Yellow Labrador Retriever (Canis familiaris) on hike near lake wearing backpack

Mark Raycroft / German Shepherd (Canis familiaris) adult on hike carrying a backpack

Rick Tomlinson / Crew hike out aboard Roy Disney's ZX86 "Pyewacket" at Antigua Race Week, 2004.