From Carona to Rifugio Calvi and Lago di Fregabolgia

Embark on a difficult hike from Carona to Rifugio Calvi and Lago di Fregabolgia, covering 10.9 miles (17.6 km) with a significant elevation gain of 2730 feet (832 metres). This challenging route, typically taking 6 hours and 23 minutes, begins on a paved road that soon becomes a dirt track, leading you through a forest to the ancient stone village of Pagliari. You will pass the scenic Val Sambuzza waterfall before the woods thin out, revealing open alpine landscapes. The trail then climbs steeply past Lago del Prato to the artificial Lago di Fregabolgia, where you can admire its impressive 60-meter-high dam before reaching Rifugio Calvi, nestled between two lakes with views of peaks like Pizzo del Diavolo.

This hike requires good fitness and sturdy shoes, as some sections have marked inclines, particularly before Lago di Fregabolgia. While there are no technically difficult or exposed parts, the overall difficulty rating means you should be prepared for a strenuous day. Trail conditions can vary with the season; always check for updates, especially after heavy snowfall, as alternative routes like the 'sentiero estivo' (summer path) might be available. Plan to start early to complete the full circuit comfortably.

This trail offers a rewarding journey through the Upper Brembana Valley, showcasing diverse terrain and stunning alpine scenery within the Parco delle Orobie. You will experience a glimpse into the past at the historic Pagliari village, marvel at the engineering of the artificial lakes and dams integral to hydroelectric power, and enjoy the welcoming stop at Rifugio Calvi. The rifugio, named after the four Calvi brothers, provides a base for further exploration of the Bergamo Alps and offers traditional cuisine, making it a notable feature of this remarkable route.