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Popocatépetl Volcano Special The activity of Mexico's most active and largest volcano has been picking up gradually during the past months. If you like to join a small group of volcano enthusiasts, join us, stay 5 nights near the volcano and move around for extended day- and night-time observation.
Volcanoes of Java Climb some of its most interesting and active volcanoes of Java: Papandayan and Galunggung, Merapi in Central Java, Kelud, Semeru, Bromo, the Tengger caldera, and Ijen.
Photos from the Kuril Islands Some rarely visited volcanoes, unspoiled nature, lots of WWII remnants - browse through several galleries from our tours to the Kuril Islands.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Pearl of the Aegean Santorini is one of the most beautiful islands in the world, famous for its breathtaking sea-filled caldera and picturesque villages. Discover its fascinating natural and cultural history on a relaxed walking study tour with us.