Visit Postojna Cave, the best-known cave in the world, and Predjama Castle, the only preserved cave castle in Europe.\ Highlights * Visit the best-known cave in the world * Take a ride on the underground electric train * Meet the most famous inhabitant of the cave - the proteus * Learn about the history of the only preserved cave castle in Europe Includes * Guide * Shared transportation * Postojna Cave entrance fee * Predjama Castle entrance fee * Insurance
