The lake is a rare example of a permanent brackish water body in the Mediterranean region.
It was designated as a Ramsar site in 2013 to protect its international importance as a wetland.
The lake level fluctuates significantly throughout the year depending on regional precipitation and evaporation rates.
The surrounding park area contains the remains of the Maškovića Han, an 17th-century Turkish caravanserai.
Water from the lake enters the sea through the Prosika canal, which was dug in the 18th century to drain the area for agriculture.
The park serves as a natural barrier between the coastal hinterland and the Adriatic Sea.
Lake Vrana is the largest lake in Croatia and functions as a protected nature park situated along the Dalmatian coast. The lake is a unique cryptodepression, meaning its surface is above sea level while its bottom lies below it. It serves as a vital ornithological reserve, hosting more than 250 bird species including rare nesting populations of pygmy cormorants and purple herons. The water body is brackish due to the inflow of seawater through porous limestone karst conduits. Visitors can access a network of wooden boardwalks and cycling trails that skirt the northern and western edges of the wetlands. The surrounding terrain consists of Mediterranean maquis shrubland and historic stone structures from the Ottoman and Venetian eras. It is a critical stopover point for migratory birds moving along the Adriatic flyway.
The Kamenjak viewpoint, which provides a panoramic elevated perspective of the entire lake and the Kornati archipelago.
Bring high-quality binoculars as the main attractions are the diverse bird populations.
Wear insect repellent, especially during humid summer evenings near the marshlands.
Rent a bicycle locally to traverse the long gravel tracks that are difficult to cover entirely on foot.
Do not attempt to swim in the protected ornithological reserve areas where it is strictly prohibited to protect water quality and wildlife.
The park operates year-round, but visitor centers and specific amenities may have reduced access during the winter off-season.
Stay on designated boardwalks and paths to protect the fragile wetland ecosystem and remain quiet to avoid disturbing nesting birds.