I visited this WHS in May 2014. I drove to Fiave’ in Trentino Alto Adige through mountain passes and winding roads. I was lucky to find perfect blue skies and sunny weather just a few days after snowfall, meaning that the mountain peaks were covered in snow. I was afraid that the pile dwelling remains were going to be underwater but this was not the case and I was very pleased. Set the GPS to the Hotel La Pineta which is just in front of the narrow unpaved road for pedestrians leading to the pile dwellings. The entrance is free and there are a few information boards give you a brief overview. In the town of Fiave’ there is the Pile Dwelling Museum which is worth visiting if you have some time. However, I very much prefer the Pfahlbaum Museum of Unteruhldigen near Lake Constance in Germany which is by far better and it also has replicas of pile dwellings next to the actual remains in Germany (now underwater!).