The lake is a remnant of the last glacial retreat in the Tagliamento valley.
It is technically situated within the borders of three municipalities: Cavazzo Carnico, Trasaghis, and Bordano.
The butterfly house 'Farfallivola' in the neighboring village of Bordano is one of the largest in Europe.
Local water management practices significantly impact the lake's volume throughout the year.
The basin provides a critical stopover for migratory birds moving through the Alps.
Lago di Cavazzo, also known as Lago dei Tre Comuni, is the largest natural lake in the Friuli-Venezia Giulia region. It is situated in the pre-Alpine area at an elevation of approximately 200 meters above sea level. The lake occupies a glacial basin characterized by a diverse ecosystem of flora and fauna. Water levels fluctuate due to its connection to the nearby Tagliamento river system and its role in regional hydro-electric management. The shoreline features designated areas for camping, picnicking, and non-motorized boating activities. Extensive walking paths surround the lake, providing direct access to the water's edge and mountain views. The water temperature is generally warmer than other alpine lakes, making it suitable for recreational swimming. It is a central hub for outdoor sports including paragliding from the surrounding peaks, windsurfing, and sport fishing.
The elevated vantage point from the road leading into the village of Bordano offers the best panoramic view of the entire lake basin.
Bring water shoes as the lake floor can be rocky in certain areas.
Plan to visit the nearby village of Bordano, known for its extensive butterfly murals.
Check local weather reports specifically for the valley, as mountain winds can change conditions quickly.
Do not attempt to swim in areas designated for hydro-electric intake or near restricted water management infrastructure.
Practice 'leave no trace' principles; keep noise levels low in designated nature observation areas.
