The complete guide to brown bears in Italy: the Marsican bear in Abruzzo (~60 individuals), the bears in Trentino (100+), where to spot them, safety, official guided tours.
Two genetically distinct and geographically separate populations of brown bear ( Ursus arctos ) live in Italy: the Marsican bear in Abruzzo and the central-Alps bear in Trentino-Alto Adige. They aren't the same thing. They have different histories, different numbers, different problems. Confusing them is the main mistake of those who write about bears in Italy without ever having left an editorial office.
The Marsican bear ( Ursus arctos marsicanus ) is an endemic Italian subspecies, meaning it doesn't exist anywhere else in the world. Its survival is one of the most significant nature-conservation results in Europe. In 1915, when the Royal Hunting Reserve that would give rise to the Abruzzo National Park was established, the bears had been reduced to a few dozen. Perhaps 20-30 individuals.
In 2024, the official estimate is 58-65 individuals in the core zone of the PNALM (Abruzzo, Lazio, and Molise National Park), with recent expansions toward the Majella National Park, the Velino-Sirente Regional Park, and the mountains of southern Lazio. It's a small, fragmented population, genetically vulnerable due to the isolation. Every bear hit by a car, and 3-5 die each year on the roads around the park, is a significant loss.
The best site of all is the Val Fondillo (Opi, AQ), in the central zone of the PNALM. Here, in the months of May-August at dawn and dusk, the chances of spotting the Marsican bear are concrete, not guaranteed, but real. The park organizes nighttime guided excursions "A passo d'orso" from June to August, with limited places (max 20 people per outing). Booking mandatory on the park's site: www.parcoabruzzo.it.
Another area frequented by the bears: Camosciara (Civitella Alfedena, AQ), where there's also a small reserve with wolves and chamois in enclosures observable from a distance. It isn't a zoo, they're very large enclosures in a natural environment.
The history of the bears in Trentino is completely different. The native population went extinct in the early 1960s, too much hunting, too much deforestation, too little space. In 1999, as part of the LIFE Ursus Project, 10 brown bears were reintroduced from Slovenia (Kočevski Rog National Park). The goal: to bring the bears back to the eastern Alps, create ecological corridors, make them a symbol of nature's return.
Today about 100-120 bears live in Trentino-Alto Adige (ISPRA estimate 2023). The reintroduction was a numerical success. It became a political disaster.
The problem isn't the bear itself, it's the coexistence. Trentino has a mountain territory with malghe, alpine pastures, very busy hiking routes, and rural communities that depend on livestock farming. When the bear population exceeded the social (not biological) "carrying capacity", the incidents began.
On April 5, 2023, Andrea Papi, 26, a runner from Caldes (Val di Sole, TN) was killed by the bear JJ4 during a morning outing on the Peller. It was the first human victim of a bear in Italy in over 150 years. JJ4 was already known, she had injured two people in 2020. The bear M90 had injured hikers in 2022. The controversy divided Italy: environmentalists vs. farmers, scientists vs. politicians. The Province of Trento obtained the culling of JJ4 (later suspended by the regional administrative court and by subsequent judicial decisions).
The chances of a close encounter are very low, bears sense humans from far away and move off. But just in case:
About 160-185 brown bears in total in Italy (2024): 58-65 Marsican bears in Abruzzo-Lazio-Molise and 100-120 bears in Trentino-Alto Adige. There are also sporadic sightings in Friuli (dispersing Slovenian bears) and rare sightings in the Piedmontese and Aosta Valley Alps.
The best site to see bears in Italy is the Abruzzo, Lazio, and Molise National Park, in particular the Val Fondillo and the Pescasseroli area. The park organizes official guided excursions (€25-35). In Trentino, the bears move mainly in the side valleys of the Brenta Group (Val Rendena) and in Val di Sole, but there are no organized sighting programs, given the political complexity of the situation.
No, not in the common sense of the term. The Marsican bear has co-evolved with humans for centuries in a densely populated area, it has developed a genetic aversion to human contact. There's no record of any Marsican-bear attack on a human in the documented history of the park. This does NOT apply to the Trentino bears, which belong to the same species but have different behavioral characteristics due to selection and history.
The Marsican bear is an endemic Italian subspecies of the European brown bear. It's distinguished by a slightly smaller size (males 100-140 kg vs. 150-250 kg for the Slovenian/Scandinavian bears), an often lighter color with a reddish tinge, and more docile behavior toward humans. Genetically, it's a population isolated for about 20,000 years, different enough to be classified as a subspecies in its own right ( Ursus arctos marsicanus ).
The Marsican bears in Abruzzo eat mainly blueberries, acorns, hymenopteran larvae, and carrion, meat is a very low percentage of the diet. The damage to agriculture (bees, corn, orchards) is real but contained, and the Province of L'Aquila and the PNALM pay compensation to the affected shepherds and farmers.
In 2007, a female Marsican bear named Sandrona was found dead, hit by a car on the SS17 between Roccaraso and Castel di Sangro. She was pregnant. The incident galvanized the scientific community and led to the installation of underground wildlife crossings on some critical roads around the park.
The name "Abruzzo" almost certainly derives from the Oscan-Latin "Aprutium", nothing to do with bears, despite the assonance. The PNALM's symbol, on the other hand, is unequivocally the Marsican bear, since 1923.
The Abruzzo, Lazio, and Molise National Park (PNALM) has its headquarters at Pescasseroli (AQ). From Rome: the A24 motorway to Tagliacozzo, then the SS83 Marsicana (about 2h30 total). From Naples: the A30 motorway to Caserta, then the SS85 via Venafro (3h). The railway reaches Castel di Sangro (25 km from the PNALM), from here a shuttle in summer or a taxi. The park isn't comfortably reachable without your own car.
Entry to the PNALM is free, the park is a public area. Parking at Pescasseroli costs €2/hour. The guided excursions "A passo d'orso" cost €25-35 per adult. The private tours with an official park naturalist guide (full day) range from €80 to €150 per person. Basic accommodation in Pescasseroli: guesthouses and B&Bs from €40-80 a night. Agriturismi in the area from €35-60.
The statistical risk of a bear attack in Trentino is extremely low, lower than the risk of being struck by lightning. From 1999 to 2023, the bears reintroduced in Trentino caused: 1 death (Andrea Papi, 2023), 8-10 light or medium injuries in 24 years. The good practices recommended by the Autonomous Province of Trento: a bell/noise while walking, anti-aggression spray, don't leave food unattended, don't approach females with cubs.
The comparison between the two Italian populations is scientifically interesting. The Marsican bear, isolated for about 20,000 years, has developed a "culture" of coexistence with humans that distinguishes it from the European bears. The PNALM researchers (a team led by Luigi Boitani and then by his collaborators) have documented that the Marsican bears actively avoid the areas frequented by humans even in the absence of fences or deterrents, a behavior probably instilled by natural selection over the centuries of hunting. The Trentino bears, descendants of Slovenian individuals that had never lived in high-density human contexts, have a different "behavioral inventory".
Coexistence between bears and humans works where conflict-prevention programs exist: electric fences for the apiaries (a provincial contribution of 70% in Abruzzo), Kangal guard dogs for the flocks, fast compensation for the damage. In Trentino, the compensation system works well, the problem is the perception of risk, fueled by often disproportionate media coverage.
The damage caused by bears to agriculture in Italy is a real but manageable problem. In Abruzzo, the most frequent damage concerns: apiaries (honey is the favorite food of the Marsican bears in summer), corn and cereals, orchards. The Abruzzo Region and the PNALM pay compensation calculated on the market value of the damage + 20% surcharge for the inconvenience. The average time for compensation is 60-90 days. To prevent the damage: electric fences (a regional contribution of 70% of the materials cost), metal protections for the apiaries, Kangal guard dogs (gentle with children, fierce with predators).
In Trentino, the Autonomous Province has a separate compensation system, faster (30-45 days) and with coverage even for the "psychological damage" to the farmers who lose animals. In 2022, the bear damage in Trentino cost the Province about €350,000 in total, less than 1% of the wild-boar hunting budget. The figure is often cited out of context to exaggerate the economic impact of the bears.
The most frequented trail for spotting the Marsican bear is the F1 route in the Val Fondillo (Opi, AQ), 6 km round trip, minimal elevation gain, walkable by any visitor. The chance of a spontaneous sighting is low during the day, the bears are mainly crepuscular/nocturnal. The park's evening guided excursions "A passo d'orso" (April-August) depart from the same valley floor with guides who know the habitual frequentation areas of the radio-collar-monitored individuals.
A curiosity few tourists know: the Museum of the Wolf and the Bear in Civitella Alfedena (AQ), near Lake Barrea, hosts an exhibition dedicated to the biology and the conservation history of the two species in the PNALM. Entry €3. In the museum's outdoor enclosure there are Apennine wolves in semi-captivity, visible at close range. One of the most educational and underrated places in Abruzzo.
Very rarely. Before 2023, the last attack with serious injuries dated back to 2020 (JJ4 in Trentino). Between 1999 and 2022, 23 years, there are fewer than 10 episodes with physical contact between bear and human, almost all in Trentino, almost all with a non-serious outcome. In Abruzzo, with the Marsican bear, there isn't a single documented case of an attack in the entire history of the park (since 1923). The real risk is statistically lower than that of a road accident on the SS83 going to the park.
Some yes, others no. KJ2 (JJ4's offspring) was put down by the Province of Trento in 2023 after injuring a beekeeper. JJ4 was captured in 2023 after the death of Andrea Papi and kept in an enclosure at Casteller (TN) pending a final decision. Several culling orders were suspended by the regional administrative court and the Council of State following appeals by environmental associations. The legal situation is constantly evolving, check up-to-date sources before planning any visit to Trentino.
Yes, but only from a safe distance and without disturbing them. During the guided excursions "A passo d'orso", the park provides precise indications on the minimum distances (never under 100 m) and forbids leaving the route or using a flash. Nighttime flash photography in the Marsican bear's denning areas is forbidden by the PNALM regulations. The cameras with a 400-600mm telephoto lens deliver spectacular images even at 150-200 m of distance.
For those coming from abroad: the Abruzzo, Lazio, and Molise National Park is reachable from Rome Fiumicino in about 3 hours (a car rental is necessary, no direct transport). Pescara airport (PSR) is closer (1h30 by car) and connected with several European low-cost airlines. Ideal weeks for spotting the Marsican bear: the second half of May, June, the first half of July. July-August is hot and crowded, the bear prefers the cooler and more remote areas.