The Soca valley has a river winding through it with crystal clear blue water like you have never seen. There are also lots of activities to do in the valley such as whitewater rafting. When the water is not too deep, it is a great activity for the whole family. In the spring when the snow is melting it is best left for adults and the more experienced. The views will take your breathe away.
It was 40 minutes from Kranjska Gora where we stayed, or a bit of a longer drive if you are staying in Lake Bled.