Tucked away in the Soča Valley, Kozjak Waterfall is a real local treasure. It's an easy, beautiful 30-minute walk from the car park near Kamp Koren, perfect for just about everyone. You'll follow a lovely path through the woods, alongside the unbelievably turquoise Soča River, before reaching the main event: a stunning 15-meter waterfall cascading into an emerald pool, all hidden within a magical, moss-covered rock chamber. There's a small entrance fee of around €5 to help maintain the path to this fairytale spot.