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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!
Ijen volcano photos Ijen volcano in East Java is famous for its turquoise acid crater lake and the large sulfur deposits that are being mined by local workers. At night, the scene is illuminated by ghostly blue flames, as sulfur ignites.