Lake Mandrensko

Lake Mandrensko
The water surface and an island
Group	Burgas Lakes
Coordinates	42°25′24″N 27°23′29″E / 42.42333°N 27.39139°E / 42.42333; 27.39139Coordinates: 42°25′24″N 27°23′29″E / 42.42333°N 27.39139°E / 42.42333; 27.39139
Lake type	natural lake, reservoir
Primary inflows	Izvorska, Fakiyska, Sredetska and Rusokastrenska
Basin countries	Bulgaria
Max. length	8 km
Max. width	1.3 km
Surface area	38.84 km²

Lake Mandrensko or Lake Mandra (Bulgarian: Мандренско езеро, Mandrensko ezero) is the southernmost of the Burgas Lakes, located in the immediate proximity of the Black Sea and close to Burgas. Being 8 km long and 1.3 km wide at maximum, as well as having an area of 38.84 km², it was a brackish natural lake until 1963, when it was turned into a reservoir with the construction of a dam to secure fresh water for the large Neftochim Burgas oil refinery. The rivers Izvorska, Fakiyska, Sredetska and Rusokastrenska flow into the lake.

The lake at dawn

Parts of Lake Mandrensko are designated protected areas inhabited by a number of locally and globally endangered species of fish and birds.

Panoramic view of Lake Mandra and its vicinity