We start from Sibenik old town harbour paddling to the St Anthony Channel, also known as the Šibenik Channel, more than 2 km long and between 140 and 220 metres wide. It serves as the door of Šibenik to the open sea and as the entrance to the town. The channel represents the place where the river Krka symbolically ends but at the same time it is the place where the river flows into the Adriatic Sea. Our first stop is an undersea tunnel built by the Yugoslav Army. Our next stop is the pearl among Venetian fortifications – St Nicholas Fortress. The fortress, almost completely surrounded by the sea and largely preserved in its original form, stands at the end of the Šibenik channel. We’ll explore it both from the inside and outside. The tour ends at St. Nicholas beach, where we’ll be picked up and taken back to our starting location.