The Marmitte dei Giganti Park, the Pian di Spagna Nature Reserve and the Acquafraggia Waterfalls
The Pian di Spagna Nature Reserveis located at the top of Lake Como. These extensive wetlands are of
significant ecological interest due to the presence of a huge variety of
In Chiavenna, there is another conservation area, the , whose primary attraction is the deep, oddly shaped holes dug into the stone by the action of glacial waters, which are called Marmitte dei Giganti, or Giants’ Pots.
Piuro, which has been subject to archaeological digging, boasts a veritable natural monument, the , which were mentioned by Leonardo Da Vinci in his Codex Atlanticus.