The lake was formed due to the geological collapse of a large karst doline (sinkhole).
Water depth reaches up to 70 meters in some sections of the basin.
The water temperature remains relatively constant throughout the year, typically hovering around 13-15 degrees Celsius.
The lake basin was historically used by the Greek military as a base and training area, with remnants of abandoned buildings still visible in the woods.
It is a protected habitat under the Natura 2000 network for its specific biodiversity.
Limni Zirou is a freshwater lake located in the Epirus region, formed by the collapse of a limestone cave system. The lake covers approximately 40 hectares and is characterized by its high altitude position relative to the surrounding valley. Its waters originate from subterranean springs rather than river runoff, resulting in consistent water levels year-round. The lake is surrounded by dense forest cover consisting primarily of plane and oak trees. It serves as an important wetland ecosystem for various local bird species and aquatic life. While previously used for military facilities during the 20th century, the area has transitioned into a recreational zone for outdoor activities. The site maintains a microclimate that remains cooler than the nearby coastal areas during summer months.
The wooden jetty located on the northern shore provides an unobstructed view across the entire lake surface.
Bring insect repellent, as the surrounding forest and wetland area can be humid.
Wear sturdy walking shoes if you plan to navigate the trail that loops around the perimeter of the lake.
Carry your own water and supplies, as facilities on-site are limited.
Do not attempt to swim in the center of the lake without local guidance, as the deep cold springs and underwater vegetation can be dangerous for inexperienced swimmers.
