I knew that finding the locations of the WHS pile dwellings in a featureless wilderness like the Ljubljana Marsh would be difficult on my own. As anticipated there was no signed directions. I was fortunate to meet a local naturalist who knew the marshland well, and who took me to Ig to visit two sites.
I agree with Hubert that this site, like the German 'Limes' requires some imagination.
I also managed to find two locations in Italy, one by Lake Costa near Monselice, and another by Lake Frassino near Pescheria del Garda.