The waterfall is fed by the melting snow and ice from the Glacier of Timorion.
The water volume is highest during June and July due to peak seasonal glacial melt.
The path connecting the three tiers is part of the extensive hiking network of the Gran Paradiso National Park, established in 1922 as Italy's first national park.
The base of the waterfalls is situated at an elevation of approximately 1,600 meters above sea level.
The waterfall area is a designated stop on the Alta Via 2 long-distance hiking trail.
Cascate di Lillaz is a three-tiered waterfall system fed by the Urtier torrent, located within the Gran Paradiso National Park. The waterfall features a total drop of approximately 150 meters across its three distinct levels. A well-maintained path leads from the village of Lillaz to the base of the first tier and continues upward to provide access to all three stages. The surrounding geology consists primarily of crystalline rocks, typical of the Aosta Valley's higher altitudes. The site remains a primary feature of the Cogne valley landscape, accessible via a loop trail that offers varied viewpoints of the torrent's cascades. The stream flow fluctuates significantly based on snowmelt from the nearby glaciers during spring and early summer.
The wooden bridge at the base of the first tier provides a direct frontal view of the main drop.
Wear sturdy, waterproof hiking boots to navigate the spray-slicked trails and uneven rocky paths.
Bring a light waterproof jacket, as the spray from the higher tiers can reach the walking paths.
Continue past the top waterfall to access the plateau of Valeille for mountain views away from the crowds.
Attempting to climb the rocks surrounding the falls or crossing the torrent outside of marked bridges.
Trails may be blocked by snow and ice from late autumn until late spring; check local park status reports before visiting during shoulder seasons.
Stay on marked trails to protect the fragile Alpine vegetation of the national park; keep dogs on a leash.
