The 20,570 metre-long Postojna Cave system is the longest cave system in Slovenia as well as one of its top tourist attractions, visited by over 500,000 visitors per year. The 5.3 kilometre-long trail is opened to the public which makes Postojna Cave the longest publicly-accessible depth of any cave system in the world. Its Grand Hall can receive up to 10,000 visitors and often serves as a concert venue.
The caves are also home to the endemic olm (proteus anguinus), the largest trogloditic amphibian in the world. Part of the tour through the caves includes a pool with some olms in it, making this one of the rare places in the world where the olm can be seen by tourists.
The Postojna cave is also available for business events. Accessibility, an intimate atmosphere at the heart of the event, a one-of-a-kind setting, state-of-the-art technical equipment, professional staff, a wide range of culinary options to choose from, and the chance for some relaxation during an overnight stay. All of this is the Postojna Cave Park – the right destination for your event, business meeting or conference.