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Hiking trails & Routes
Italy
Rimini
Gemmano

Great Loop CAI 011

Moderate

4.2

(46)

137

hikers

Great Loop CAI 011

03:04

9.56km

400m

Hiking

Embark on the Great Loop CAI 011, a moderate hiking route that takes you through a diverse landscape of chalky stone, gullies, and ravines. This 5.9-mile (9.6 km) trail offers a rewarding experience, with a total elevation gain of 1307 feet (398 metres) over an estimated 3 hours and 3 minutes. You will hike through magnificent Mediterranean oak forests and discover panoramic views from higher points like Viewpoint Ripa della Morte, offering glimpses of the surrounding area and even San Marino from the village of Onferno.

When planning your visit, you will find the route well-marked with signage designed for nature observations, making navigation straightforward. The trail is a loop, which means you will finish where you started, simplifying your logistics. Consider starting your hike earlier in the day to fully enjoy the natural environment and the varied scenery at a comfortable pace.

The Great Loop CAI 011 is situated within the Onferno Nature Reserve, a site recognized as a UNESCO World Heritage Site for its significant natural and cultural treasures. The area is known for its unique karst geology, featuring distinctive gypsum formations that shape the landscape. This trail offers a great way to explore a protected environment that stands out in the region.

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

Parking

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1

5.61 km

Viewpoint Ripa della Morte

Highlight • Viewpoint

Ripa della Morte" is a steep sand wall located in the Onferno Oriented Nature Reserve, in the province of Rimini.

Translated by Google •

Tip by

2

7.50 km

Onferno Caves

Highlight • Cave

Inside the Nature Reserve there is the Grotta di Onferno, 700 m long and 70 m deep, with a difference in height of about 70 m originating from some streams that descending from Monte Croce, reached the chalky cliff, begin an underground path, to resurface more Valley.
The exploration of the cave took place in 1916 by Lodovico Quarina, who went up the cave from the resurgence to the sinkhole.
Today's guided tours retrace this direction and allow you to admire the typical alabastrines of the chalky caves.
Near the exit there are some rooms enlarged by collapse phenomena. In the Quarina Room the vault is animated by mamelons, curious conical structures among the most beautiful and largest in Europe that indicate the base of a layer of plaster.
The cave houses the most important bat colony in the region, with eight different species.
Since the summer of 1989, the cave has been open to the public, it is a sort of natural tunnel that is easy to access through the two entrances and just as easily walkable (thus unique in Emilia-Romagna).

(Source: prolocogemmano.it/grottedionferno/)

Translated by Google •

Tip by

3

7.56 km

For the visit to the caves bring stuff to soil. The passages are narrow and you crawl the rocks.

Translated by Google •

Tip by

B

9.56 km

End point

Parking

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Way Types & Surfaces

Way Types

4.21 km

3.86 km

780 m

713 m

Surfaces

3.33 km

2.77 km

2.41 km

1.00 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (520 m)

Lowest point (170 m)

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Weather

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Friday 3 July

31°C

20°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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Comments

April 12, 2025,Riserva Naturale di Onferno in Valconca - giro ad anello
In the final stretch, 20 minutes after arriving, we met a family of wild boars with at least ten cubs.

Showing Translation

Departure from the car park in front of the Onferno caves.
Relatively easy route except for the uphill section that starts from the "kennel" house, which I called this because it looks like an uninhabited country farmhouse but with 6 enormous Maremma dogs who welcome you by barking as much as they can and following you throughout the entire journey. …

Showing Translation

The Paths of Gemmano - The Great Ring CAI 011

Path in the Conca Valley belonging to the network of "I Sentieri di Gemmano", a locality in the province of Rimini.

Path:
Caves and Castle of Onferno - Path 011 Big Ring - Ripa della Morte - Piandicastello Cemetery - San Salvatore - Path Via dei Crinali - Caves and …

Showing Translation

A truly beautiful loop hike. I highly recommend stopping at the Onferno Caves during the trek; they're truly breathtaking. Plus, there are farmers and ranchers nearby where you can buy excellent, locally sourced produce!

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Frequently Asked Questions

How long does it typically take to hike the Grande Anello CAI 011?

The Komoot route for the Grande Anello CAI 011 through Onferno Nature Reserve is approximately 9.5 km (5.9 miles) long and takes around 3 hours to complete. While some sources mention a much longer 29.5 km route, this specific Komoot tour focuses on a more manageable loop within the reserve.

What is the difficulty level of this hike?

This route is rated as moderate. It involves an elevation gain of about 398 meters (1,307 feet) and a similar descent, traversing varied terrain including dirt tracks and some asphalt sections. It's suitable for hikers with a reasonable level of fitness.

What kind of terrain can I expect on the trail?

The trail offers a diverse experience, winding through an unspoilt karst landscape of chalky stone, gullies, and ravines. You'll encounter magnificent Mediterranean oak forests, dirt roads, and some stretches of asphalt. The path is generally well-maintained for nature observations.

What are the main points of interest along the Grande Anello CAI 011?

Key highlights include the Viewpoint Ripa della Morte, offering panoramic views of nearby ravines. You'll also pass near the famous Onferno Caves, known for their gypsum formations and bat colonies. Another notable spot is the View of San Marino from the exit of the Onferno Caves.

Is the Grande Anello CAI 011 trail dog-friendly?

The Onferno Nature Reserve is generally welcoming to dogs, but they must be kept on a leash to protect the local wildlife and ensure a pleasant experience for all visitors. Always clean up after your pet.

Do I need a permit or pay an entrance fee for the Onferno Nature Reserve?

Hiking the Grande Anello CAI 011 itself does not typically require a specific permit or entrance fee. However, if you plan to visit the Onferno Caves, there is usually an entrance fee, and guided tours with expert speleologists are often required.

When is the best time of year to hike this route?

The trail can be enjoyed during most seasons. Spring and autumn offer pleasant temperatures and vibrant scenery, with blooming flora or colorful foliage. Summer can be warm, so an early start is recommended. Winter hiking is possible, but be prepared for cooler temperatures and potentially muddy conditions.

Where can I park to access the Grande Anello CAI 011?

Specific parking information for the Grande Anello CAI 011 trailhead isn't detailed, but visitors typically park near the village of Onferno or the Onferno Caves visitor center, which serves as a common starting point for trails within the reserve.

Does this trail intersect with other paths?

Yes, the Grande Anello CAI 011 route also passes through sections of other official trails, including the Sentiero dei Crinali, Via Arcella, and Via Piana. You might also encounter parts of the Ripa della Morte trail.

What kind of wildlife and plants might I see along the way?

The Onferno Nature Reserve is a Site of Community Importance (SCI) and part of the Natura 2000 network, protecting rich biodiversity. You might spot rare and unusual flora, roe deer, and porcupines. The Onferno Caves are particularly famous for hosting one of Italy's largest and most varied colonies of bats.

Are there any facilities like cafes or restaurants near the trail?

The village of Onferno, a former rural castle, is a good place to look for local amenities. While specific cafes or restaurants directly on the trail are unlikely, you can often find options in the village or nearby towns to refuel before or after your hike.

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