 Starting from the south, in the area of Solagna, the karst spring of Fontanazzi is a destination for caving enthusiasts.Continuing north and entering the town of Valstagna, the underground system of the Caves of Oliero is the widest karst feature in the whole valley, followed by the Lake Subiolo caves, located a few kilometers to the north.Valstagna, and specifically the narrow road that connects Valstagna to the town of Foza, hosts an important stage of the race "Rally Città di Bassano".