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Riserva naturale orientata di Onferno

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Riserva naturale orientata di Onferno

Riserva naturale orientata di Onferno

This nature reserve is characterized by its limestone cave systems and resident bat colonies. Visitors go here to walk the cave trails and observe the specific geological formations and the local ecosystem of the karst landscape.

Getting There

The reserve is located outside the main urban center of San Marino. Access is typically via taxi or rental car from the city center, with the journey taking approximately 15 to 20 minutes depending on traffic.

Duration of Visit

Allow roughly 2 to 3 hours to complete the guided cave tour and walk the surrounding nature trails.

When to Visit

The caves maintain a constant temperature year-round, making the interior accessible in any season. However, the outdoor trails are most accessible during spring and autumn. To avoid larger groups, visiting on weekdays is recommended.

Nearby Attractions

The reserve can be combined with other local sites in the surrounding area:

  • Rocca Malatestiana di Montecolombo (5.1km)
  • Marano (6.6km)
  • Chiesa di San Paolo apostolo (6.8km)
  • Cando (7.3km)

Updated September 13, 2026 · Edited by the World by City editors

Tickets & tours

Admission prices and opening hours change often, so we don't list them here. Check what's on sale and at what price below — booking ahead can cut the queue at some places.

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Stays near Riserva naturale orientata di Onferno

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Good to visit alongside

Rocca Malatestiana di Montecolombo

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Rocca Malatestiana di Montecolombo

This medieval castle stands in the village of Montecolombo in Emilia-Romagna. It's a pleasant spot to wander the old castle grounds amid simple, rustic countryside scenery.

5.1 km away
Marano

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Marano

The Marano River flows through both San Marino and Italy's Emilia-Romagna region. Following its course as it crosses the border offers a chance to enjoy the surrounding scenery.

6.6 km away
Chiesa di San Paolo apostolo

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Chiesa di San Paolo apostolo

This Roman Catholic church in San Marino was begun in 1898 and consecrated in 1917. Its simple, quiet atmosphere makes it a nice place for a brief visit.

6.8 km away
Cando

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Cando

The Cando is a river that rises east of Monte San Cristoforo in eastern San Marino and flows northeast. It joins the Marano River near Faetano, winding through quiet countryside.

7.3 km away
Monte San Cristoforo

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Monte San Cristoforo

A mountain in southern San Marino stretching between the villages of Fiorentino and Montegiardino, rising to 534 meters. Its gentle ridge makes for a pleasant climb with views of San Marino's countryside.

7.5 km away
Fiumicello

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Fiumicello

The Fiumicello is a river that rises in San Marino and flows eastward to the Italian border. As a tributary of the Marano River, it is one of the waterways that shape San Marino's landscape.

7.7 km away