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Introduction to Plate Tectonics The Earth's upper, rigid layer is broken into several plates which are in constant motion to one another. Most earthquakes and volcanoes occur as result of these plate boundaries.
17 days volcano trekking This is one of our most exciting volcano tours! Halmahera, North Sulawesi and the Sangihe Islands are not only very scenic and interesting as well as nearly unspoiled by tourism, but also home to some of the country's most active (and often erupting) volcanoes, inclduing Dukono, Ibu, Lokon, Soputan and Karangetang.
Guatemala photos Guatemala - a land of volcanoes and the colorful Mayan culture with incredible variety. A dream destination for volcano enthusiasts and photographers!
14-day geo tour The Canary islands boast spectacular scenery, wild nature, great culture and gorgeous cuisine. Get to know 4 jewels on one tour: Lanzarote, La Palma, El Hierro, and Tenerife., and discover some world-class geology with an expert!