The lake was formed after a catastrophic landslide in 1963 blocked the Visočica River, creating a natural dam that was later reinforced by engineers.
The original village of Zavoj was submerged during the lake's formation, leading to the relocation of the local population.
It is one of the highest altitude reservoirs in Serbia, contributing to the energy production of the Pirot Hydroelectric Power Plant.
The lake serves as a habitat for various endemic fish species, making it a regulated area for professional and recreational angling.
During periods of extreme drought, remnants of the old village architecture have been known to emerge near the shorelines.
Zavoj Lake is an artificial reservoir created by the construction of a 79-meter-high earth-fill dam on the Visočica River in 1963. It is situated within the Stara Planina Nature Park in southeastern Serbia near the border with Bulgaria. The lake covers an area of approximately 5.5 square kilometers and reaches depths of up to 80 meters. Its creation followed a massive landslide in 1963 that temporarily blocked the river canyon, necessitating the development of the current hydroelectric project. The water is noted for its clarity and is a primary destination for recreational fishing, particularly for trout and catfish. The surrounding terrain is characterized by the rugged peaks of the Stara Planina mountain range.
The elevated vantage points along the Pirot-Visočka Ržana road offering panoramic views of the entire lake basin.
Bring polarized sunglasses to better navigate the water surface and spot fish.
Pack sturdy hiking footwear if you intend to explore the steep, unpaved trails surrounding the lake perimeter.
Ensure your vehicle is capable of handling mountain terrain, as access roads are often narrow and winding.
Do not attempt to swim near the hydroelectric dam intake structures due to dangerous water currents and safety restrictions.
Practice 'leave no trace' principles; do not leave litter on the shore or in the water. Respect local fishing permits and regulated catch zones.