Planinska Jama Cave

Planinska Cave, named for the Little Castle near its entrance, is one of Slovenia's longest water caves. It is a massive tunnel and the Unica River's subterranean bed. It's in Carniola's Inner Region. A confluence of two underground rivers can be found 500 meters from the cave's entrance: the Pivka River, which flows from the Postojna Polje through Postojna Cave, and the Rak River, which flows from Rak Skocjan through Weaver Cave to Planina Cave. This is one of Europe's greatest subterranean river confluences.

The cave entrance is in the gable end valley below 65 high cliffs in the southwestern part of Planina Polje. The cave is 6,656 meters long (21,837 ft). Water tracking has shown a link between the systems of Planina Cave and Postojna Cave, and the administration of Postojna Cave anticipates that the link will be examined by cavers as well. The integrated system would be almost 31 kilometers long (19 mi).

The cave is one lengthy corridor with many strange sights to see. Because this isn't one of the most popular caves in the area, you're less likely to encounter large crowds, which means more room. Many caverns may be found in the Postojna region. This one, on the other hand, is hidden beneath a massive limestone cliff, giving it a mysterious vibe when you first view it. Visitors can witness the historic remnants of a watermill in the Unica River flow from April until the end of September.

Length: 31,000 m

Address: Planina, 6232 Planina, Slovenia