Described as early as 1875 by Abbot Stoppani, Buca del Corno is a karst cave dating back to prehistoric times.
At 385 meters long, it includes the Waterfall Hall, the Whirlpool Hall, the Landslide Hall and the Altar Hall.
This is an active cave, that is, a cavity traversed by water whose course can reach considerable flow rates during heavy rains.
The roar of flowing water makes a visit to the cave very fascinating.
If you love a bit of noir, also, know that the Altar Hall was most likely a burial site: this would be proven by the artifacts found here and now on display at the Bergamo Archaeological Museum.
In the cave you can make some very unique encounters: the Allegrettia Pavani, a very rare beetle, lives here; unfortunately it is a bit shy, so look around carefully to see it.
Buca del Corno can be visited internally only by reservation and with a guide.
The park surrounding it also is equipped with barbecues and tables, the ideal place for a nature hike.