Setting off in Tanzania, they travel over the Ngorongoro Crater, where one of the world's densest concentrations of game inhabits an enormous extinct volcanic crater. Landing in the Serengeti, Stephen shadows a local vet on his rounds treating the wildlife of the famous national park. Then he takes to the air again, this time heading westward into the dense forests of Rwanda's Volcanoes National Park in search of one of the planet's most awe-inspiring animals - the mountain gorilla.

Outdoor Photography's Magazine intriguing balance of features, tests, techniques, travel and environmental stories make it the most relevant magazine in the changing world of film and pixels. Each issue features an inspiring array of landscape, wildlife and travel features, with regular contributions by Britain's leading photographers, tests of digital and film equipment by photographers for photographers and a detailed listing of digital and 35mm SLR cameras.