Caglieron Caves: the complex, located in the Breda di Fregona area, comprises a series of cavities that are partly artificial, the result of sandstone quarrying – known as piera dolza, i.e. soft stone – and partly of natural origin, excavated by the Caglieron stream on alternating layers of calcareous conglomerate, sandstone and marl from the Middle Micocene (between 16 and 10 million years ago). Along the way, numerous waterfalls are encountered, some of them several metres high. Due to the high limestone content of the water, stalactites and stalagmites of various shapes and colours can be admired.
