The Frasassi Caves (Grotte di Frasassi) are a karst cave system in the municipality of Genga, Italy, in the province of Ancona, Marche. They are among the most famous show caves in Italy. An entrance to one of the Frasassi caves was discovered by a farmer on June 28, 1948. More entrances were found in the 1950s and 1960s by members of the Italian Mountaineering Club (Club Alpino Italiano) from the nearby towns of Jesi and Fabriano. In the 1970s more caves were discovered by a group of Ancona speleologists. Rich in water, the cave system is particularly well endowed with stalactites and stalagmites.

Below is a selection of photos taken during a visit to Grotte Di Frasassi on may 12th 2026. Click on a small photo for a larger view, then select the next one with the cursor keys or the arrows on either side of the photo.