Our Cosmos tour of Croatia, Slovenia and Bosniaer Herzegovina was described as ‘active’ which was pretty accurate. It was bookended by two natural wonders, the Postojna Caves in Slovenia and the Plitvice National Park in Croatia. Both visits were a sensory overload, with visual splendours so impressive you can’t quite grasp they are real and not some giant digitally enhanced 3D projection. We’ve ignored cave tours in other countries as NZ’s Waitomo complex has a reputation for being world standard. Waitomo is wonderful, but Postojna is something else – 25km of cavernous sculptural wonderland. First you are taken on an open train through 5 km of the cave system, Indiana Jones style with minimal OSH warnings – we all ducked reflexively anyway as it raced around corners, overhangs and stalagmite formations at a speed and proximity
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