Best lakes around San Polo Dei Cavalieri are situated within the Monti Lucretili Regional Natural Park, an area known for its natural features. This region, characterized by lush nature and limestone ridges, offers various natural attractions including smaller lakes accessible via hiking. The landscape provides diverse environments for outdoor exploration.
Last updated: June 29, 2026
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Magnificent 16th-century cardinal's villa in exotic hillside gardens with elaborate fountains and grottoes.
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wonderful place, the trail is very easy
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The Pozzo del Merro is a karst sinkhole located in the countryside north of Rome, between the Cornicolani Mountains in Macchia del Barco and Macchia di Gattaceca, in the municipality of Sant'Angelo Romano. According to initial studies by the University of Tor Vergata, the cavity is 392 meters deep, which is the maximum limit the measurements have reached. The probes launched since its discovery have not reached bottom, and the studies continue. This sinkhole has always been known to the locals. In 1890 it appears in the description of a tourist itinerary that leads from Rome to Sant'Angelo Romano, and is described as "a kind of chasm, at the bottom of which extends a small lake and whose very steep sides are covered with trees". https://www.sotterraneidiroma.it/sites/pozzo-del-merro
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"On the east side of the Lucretili Mountains, immersed in oak and fir woods, the two Percile lakes, also called "Lagustelli", seem to rest. They are two small bodies of water of karst origin protected by an integral reserve within the Natural Park Regional dei Monti Lucretili. The largest lake, with a diameter of almost 120 meters, is called Fraturno while the smaller one, located a few meters away, is called Marraone" (source: Lazio Nascosto)
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These splendid lakes are a testimony of the karst phenomenon on the Lucretili mountains. The largest, the Fraturno lake, exposed to the sun, the smallest enclosed in a deep sinkhole. Immersing yourself in the Fraturno waters is a unique experience if you overcome the initial skepticism of the muddy bottom!
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Here we can admire two beautiful lakes of karst origin.
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Long rectangular tanks placed in succession in front of the large fountain of Neptune, from which they collect the waters. The perfect place for a short stop that allows us to observe the thousand different ripples created by the jets of water, coming from the vases. The name refers to the fact that freshwater fish were bred here in order to entertain guests and inhabitants of the villa with fishing and to ensure an always fresh supply of good fish products (of safe origin).
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nice garden in the shade
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The area around San Polo Dei Cavalieri, particularly within the Monti Lucretili Regional Natural Park, offers a diverse range of aquatic environments. You can find natural karst lakes like the Lagustelli di Percile, historical man-made features such as The Fish Ponds of Villa d'Este, and even unique flooded quarries like those seen from the View of the Flooded Quarries of Tivoli.
Yes, the Lagustelli di Percile are a prime example of karst lakes in the Monti Lucretili mountains. This site includes the larger Fraturno lake and a smaller one nestled within a deep sinkhole, offering a unique natural experience.
You can visit The Fish Ponds of Villa d'Este. These long, rectangular tanks were historically used for breeding freshwater fish and are situated in front of the Neptune fountain, showcasing a blend of historical engineering and aesthetic design.
Absolutely. The Lagustelli di Percile are considered family-friendly, offering an easy trail to reach them. Additionally, The Fish Ponds of Villa d'Este and the View of the Flooded Quarries of Tivoli are also suitable for families.
The Monti Lucretili Regional Natural Park, where many of these lakes are located, is characterized by lush nature, limestone ridges, and diverse landscapes. You'll encounter forests, cultivated fields, and potentially even wild horses on trails leading to spots like the Laghetti di Percile. The Pozzo del Merro is another significant natural karst feature, a deep sinkhole with a lake at its bottom.
Yes, the Laghetti di Percile, including Fraturno Lake, are accessible via hiking trails. A popular route from Cineto Romano is approximately 10 km long and takes around 3.5 hours, winding through fields and forests to reach the tranquil lakes. For more hiking options in the broader area, explore the routes in the Hiking around San Polo Dei Cavalieri guide.
Beyond visiting the lakes themselves, the Monti Lucretili Regional Natural Park offers extensive opportunities for outdoor activities. You can find numerous hiking trails, with options ranging from moderate to difficult, such as the 'From Prato Favale to Monte Gennaro'. For cycling enthusiasts, there are MTB trails like the 'Giro del Pellecchia sui Monti Lucretili' and gravel biking routes. Explore more options in the Hiking, MTB, and Gravel biking guides around San Polo Dei Cavalieri.
The natural lakes and trails in the Monti Lucretili Regional Natural Park are generally enjoyable during spring and autumn when the weather is mild, and the natural scenery is at its most vibrant. Summer can also be pleasant, especially for shaded forest trails leading to the lakes. Winter offers a different, quieter experience, though some trails might be more challenging.
Visitors frequently highlight the natural beauty and tranquility. For instance, the Lagustelli di Percile are praised as a 'wonderful place' with an 'easy trail' and a unique experience if you immerse yourself in the waters of Fraturno Lake. The area's peaceful atmosphere and picturesque settings are consistently appreciated.
Yes, the View of the Flooded Quarries of Tivoli offers an unusual and fascinating panorama. Located along the Strada dei Fili, this spot provides a unique perspective over water-filled former quarries, blending industrial history with natural reclamation.
Yes, the Pozzo del Merro is a notable karst sinkhole north of Rome, known for its immense depth (over 392 meters measured so far) and the small lake at its bottom. It's a significant natural monument, though access to the bottom is restricted due to its challenging nature.


Still not found your perfect lake around San Polo Dei Cavalieri? Check out the guides of these regions to see even more beautiful places.