Top 4 Caves 프로시논

From the Certosa di Trisulti a small road descends which, in just over a kilometer, leads to this small sanctuary nestled in the mountain wall. The setting is very suggestive but the sanctuary, as of May 2025, is closed due to the danger of falling rocks! g

The Ouso di Passo Pratiglio is a cave that opens at an altitude of 1,360 meters on the south-east side of Mount Malaina. Discovered in 1976, it was explored in 1996 to a depth of -299 meters. Today it is the deepest cave in Lazio, with a depth of about 840 meters. ⚠️ Be very careful when approaching!

The caves are open to visitors and there are places to eat or a small fountain to refill your water bottles.

Absolutely worth seeing and listening to!

In the penumbra generated by the La Monna and Rotonaria mountains, the Antullo well emerges majestically, an extraordinary sinkhole of natural origins. This phenomenon is the result of the collapse of the ceiling of a vast cave, resulting in a chasm of imposing proportions: with an upper diameter of 140 meters, a perimeter of 370 meters and a depth of 60 meters. The Antullo well establishes itself as one of the largest examples of a sinkhole formed by collapse in the world, exceeding in size even the famous gouffre de Padirac in France. Walking along the path that surrounds it, visitors will be able to admire this karst chasm, with its walls adorned with suggestive stalactites and its bottom covered with rich tree vegetation.

from web: ... originally it was a simple cave, set in a large rock, immersed in the greenery of the Ernici mountains, chosen by a hermit, to better live in prayer and solitary meditation.

The Ouso di Passo Pratiglio is a cave discovered in the late 1970s. Over time, groups of speleologists have managed to explore the cavity going down to -840 m. The entrance to the cave is not delimited, therefore you must be very careful when approaching.

The Pozzo D'Antullo is a large karst sinkhole, with a maximum depth of 80 m and a circumference of 300 m, originating from the sinking of the ground, due to karst phenomena in the area. The bottom of the sinkhole is completely covered by vegetation and there are curious curved stalactites, probably generated by the wind coming from the side tunnels that modify the deposition of limestone crystals. During the visit you can walk the entire perimeter of the sinkhole and admire it from different angles.