Description
Kostanjevica Cave is a natural gem of the Posavje region, located at the foot of the Gorjanci hills near Kostanjevica na Krki. It was formed by rainwater, underground streams and tectonic shifts, creating impressive dripstone formations.
The cave stretches for more than 2 kilometers, with 300 meters arranged for tourist visits. Visitors enjoy a constant temperature of 10–12 °C, making exploration pleasant in all seasons. The guided tour lasts 45–60 minutes and is suitable for families, school groups and elderly visitors.
Kostanjevica Cave was discovered in 1937 when floodwaters opened the current entrance. In 1971, it was equipped with electric lighting and tourist paths. Today, it is considered one of the most accessible karst caves in Slovenia.
Guided tours run from April 15 to October 31. In spring (April–June), the cave is open on weekends and holidays, while in summer it welcomes visitors daily. Visits outside regular hours are possible by prior reservation.
For detailed information on prices and schedules, visit the official Kostanjevica Cave website.
