Grotta di San Paterniano

The Grotta di San Paterniano is a cave near Fano with a T-shaped layout where a main passage about 18 meters long connects to two side branches of similar length. The structure is built from river stones and reaches about 3 meters in height and 2.5 meters in width, with two openings in the roof that once served as entrances via removable ladders.

In 303 CE, Saint Paternian sought shelter in this cave during Christian persecutions after receiving a divine vision guiding him there. The structure had initially been built as a Roman storage building or water cistern before being converted into a Christian burial site.

For centuries, people came to this cave as a sacred refuge to pray and venerate religious images found within its walls. The site held spiritual meaning for those seeking protection and connection to their faith during times of hardship.

Access to the cave is not straightforward and requires preparation, as you must use the original roof openings for entry. Wear comfortable clothing and sturdy shoes, and gather local information before visiting to ensure a safe and informed experience.

Three hunters rediscovered the cave centuries later and found a crucifix, a painting of Saint Paternian, and an image of the Madonna with Child inside. These religious objects revealed that the site had remained accessible and meaningful to believers over a long period despite its remote location.