World's most active volcanoes
3. Mount Yasur (Vanuatu)
Located in the southwest Pacific on Tanna Island in Vanuatu, Mount Yasur is part of the Pacific Ring of Fire, a string of volcanoes. It erupts almost constantly, with most measurements indicating an eruption several times an hour for several centuries. Because of the almost constant volcanic activity it is a popular tourist destination. Sometimes tourists are able to climb all the way to the summit. Mt. Yasur has been nicknamed "The Lighthouse of the Pacific" because it is constantly alight from eruptions.