January the 30th, 2026 – Feštinsko kraljevstvo isn’t a name you’ll likely have heard, but it’s Istria’s “accidental” cave that was discovered entirely by chance. As Ivana Vasarevic/Putni kofer writes, in the very heart of Istria, not far from the peaceful old village of Feštini near Žminj, you’ll find the Feštinsko kraljevstvo cave. As soon as you step into the Feštinsko kraljevstvo cave, you will hear the harmonious and soothing sound of drops of water introducing you to this mysterious underground world. The Feštinsko kraljevstvo cave is actually an irregular oval-shaped hall with a total length of 67 metres. There is also a tragicomic situation associated with the mysterious Feštinsko kraljevstvo cave.