The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Gunung Besar is a 1899-m-high volcano in SE Sumatra with a minor sulfur deposit in its crater.
A major solfatara field, Marga Bayur, is located along its north and NW flanks along the Semangko fault system. A minor phreatic eruption occurred in 1940 from Gemurah Ilahan, one of four solfatara fields of the Marga Bayur field.
Volcano & eruption special tours: Tours dedicated to usually a single volcano currently in eruption. These trip, sometimes offered only last-minute through our newsletter, are among the most adventurous and most popular in our program.
Private tours on Etna volcano: Discover Europe's largest active volcano on private, guided 1-day tours. Tours can be customized for different interests and fitness levels.
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