Nyiragongo is an active volcano in the Democratic Republic of the Congo.
Joseph, a Virunga national park ranger, climbs the Nyiragongo volcano three times a week. The ascent has a 1500 m elevation gain and takes about five hours. The Virunga rangers cover a broad spectrum of duties including wildlife and nature conservation, securing the park, preventing poaching, and escorting tourists for the mountain gorilla trecks and Nyiragongo volcano climbs. Over the last years, 150 rangers have been killed in the line of duty.