4.3
(198)
877
hikers
70
hikes
Hiking around Lake Posta Fibreno offers diverse trails within the Lago di Posta Fibreno Regional Nature Reserve, located in the Valle di Comino. The area is characterized by crystal-clear karstic waters, fed by springs from the Apennine Mountains, and surrounded by lush vegetation. Hikers can explore landscapes featuring the unique "La Rota" floating island, a peat and shrub formation that shifts position. The terrain includes gentle paths around the lake and routes through varied natural settings.
Last updated: July 9, 2026
4.4
(5)
27
hikers
6.26km
01:57
230m
230m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
5
hikers
5.16km
01:32
150m
150m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.5
(2)
4
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
8
hikers
5.96km
01:33
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
5.71km
01:29
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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To be enjoyed throughout the route by bike
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The lake of Posta Fibreno, also known as lake of the Post, is located in the Comino Valley on the border of Lazio with Abruzzo and Molise, in the middle valley of the Liri, in the center of the homonymous reserve in the province of Frosinone, the Lazio side of the National Park of Abruzzo, Lazio and Molise. Source: https://it.wikipedia.org/wiki/Lago_di_Posta_Fibreno
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Posta Fibreno is an Italian town of 1 043 inhabitants in the province of Frosinone in Lazio located in the Comino valley, on the Lazio side of the national park of Abruzzo, Lazio and Molise.
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The lake of Posta Fibreno is part of the homonymous protected natural area and extends for 0.287 km². The lake is fed by several tributaries, but the water flows slowly. This ensures that the temperature remains around 10-11 ° C all year round. Another feature is the transparency that allows the light to reach deep.
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The lake of Posta Fibreno or della Posta, a nature reserve, is one of the most beautiful, characteristic and unspoiled natural oases in all of central Italy. Included in the green Valle di Comino, this huge source of pure water, coming from the slopes of the nearby mountains of the Abruzzo National Park, gives life to the icy and clear Fibreno river. Singular peculiarities of the lake are the floating island and the ancient boat with a flat bottom. The small trout called "Carpione del Fibreno" (endemic) and the rare macrostigma trout find their natural habitat here. The lake has always been frequented by scuba divers or free diving and by birdwatching enthusiasts.
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The nature reserve Lago di Posta Fibreno is a protected natural area located in the municipality of Posta Fibreno, in the province of Frosinone. It is known for the presence of a floating island already mentioned by Pliny the Elder in his Naturalis historia (source: Wikipedia https://it.wikipedia.org/wiki/Riserva_naturale_lago_di_Posta_Fibreno).
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There are over 50 hiking routes available around Lake Posta Fibreno, catering to various skill levels. You'll find a mix of easy, moderate, and some more challenging trails to explore the unique natural reserve.
The terrain around Lake Posta Fibreno is diverse, characterized by crystal-clear karstic waters and lush lakeside vegetation. You can expect gentle paths suitable for leisurely strolls, as well as routes with moderate elevation changes that lead through varied natural settings, including areas fed by springs from the Apennine Mountains.
Yes, Lake Posta Fibreno offers many easy hiking options perfect for beginners or families. For example, the Lake Posta Fibreno – Lake Posta Fibreno loop from Posta Fibreno is an easy 3.2-mile (5.1 km) path that provides continuous views of the lake's clear waters. Many trails are equipped with information panels and walkways, making them accessible.
Hikers can witness several unique natural features, most notably the crystal-clear karstic waters of the lake itself, fed by numerous springs. A truly special sight is "La Rota," a circular floating island made of peat and shrubs that constantly shifts its position. The area's rich biodiversity and lush vegetation also contribute to its distinct natural beauty.
Absolutely. Lake Posta Fibreno is a significant ecological site, home to over 100 species of birds, making it an excellent spot for birdwatching. Some itineraries, like the "Sentiero Taurino," are known for providing great birdwatching opportunities, with specific huts equipped for observing both permanent and migratory bird life.
The trails around Lake Posta Fibreno are highly regarded by the komoot community, with an average rating of 4.4 stars from over 160 reviews. Hikers often praise the tranquil atmosphere, the stunning clarity of the lake's waters, and the well-maintained paths that allow for an immersive nature experience.
Yes, there are several circular hiking routes available. A popular option is the Submerged Cross loop from Posta Fibreno, which is 3.9 miles (6.3 km) long and offers beautiful views of the lake's unique features. Another is the Fossa Maiura – Fossa Maiura Karst Sinkhole loop from Fossa Maiura, a 2.8-mile (4.6 km) trail.
Yes, you can. The Fossa Maiura Karst Sinkhole – Fossa Maiura loop from Alvito is a moderate 5.9-mile (9.5 km) hike that allows you to explore the areas around this notable geological feature. It's a great way to experience the unique karstic landscape of the region.
Lake Posta Fibreno is beautiful year-round, but spring and autumn offer particularly pleasant hiking conditions with mild temperatures and vibrant scenery. The lake's waters maintain a nearly constant temperature, making it a refreshing sight even in warmer months. For specific seasonal conditions, it's always good to check local forecasts.
Yes, beyond the natural beauty, you can observe traditional "nàue" wooden boats still used by local fishermen on the lake. These traditional boats add a unique cultural dimension to your outdoor experience, connecting you with the local heritage of the Valle di Comino.
While the region is best explored by car for maximum flexibility, some local bus services might connect nearby towns to Posta Fibreno. For detailed and up-to-date information on public transport options, it is recommended to consult local transport schedules or visit the official tourism website for the Lazio region, such as VisitLazio.com.
Parking facilities are generally available in and around the village of Posta Fibreno, which serves as a common starting point for many trails. Look for designated parking areas near the lake's access points or trailheads. It's advisable to arrive earlier during peak seasons to secure a spot.


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