This is Ljubljanica river’s first (partly) artificial channel, called Stržen:
The Romans dug it in the 1st century AD al the way through the Ljubljana Marshes in order to shorten the travel between Nauportus (today Vrhnika) and Emona (Ljubljana).
It silted up hundreds of years ago, and the water flows here only after intense rains.
Photos taken with Nikon 1 J1 – it was Millie’s first true KAP flight!
Learn more about Roman water engineering – click on our previous post!