Lago di Venere, Volcanic lake in Pantelleria, Italy.

Lago di Venere, also called Specchio di Venere, is an elliptical volcanic basin in the north of Pantelleria, 450 by 350 metres with a 1,750-metre perimeter, lying 2 metres above sea level and up to 12 metres deep. Three thermal springs feed it with water at 35-58 °C, and its alluvial southern shore holds mineral muds rich in sodium, potassium and sulphur.

Excavations since 1985 have uncovered the remains of a temple built in four phases, from the Bronze Age to the Imperial Roman period, on the lake's shores. Herodotus, writing of the island of Cirani, told in 429 BC of a lake where girls collected gold flakes using bird feathers dipped in pitch. Until the 1970s the banks hosted races with horses, mules and donkeys.

Locals call the lake u Vagnu i l'Acqua, "the Bath of the Water", in the Pantelleria dialect. Its southern alluvial shore is known for thermal and mineral muds rich in sodium, potassium and sulphur, which visitors still spread on their skin. Until the 1970s the shores often hosted races with horses, mules and donkeys.

The lake lies at 2 m above sea level in the northern part of Pantelleria, within the national park. The southern shore is alluvial and muddy, with thermal and mineral muds rich in sodium, potassium and sulphur. The three thermal springs discharge water at 35–58 °C, so test the water before entering.

The lake's southern shore is made of alluvial deposits where thermal muds rich in sodium, potassium and sulphur collect. On the margins grows Schoenoplectus litoralis subsp. thermalis, whose only European station is here. Until the 1970s the shores hosted races with horses, mules and donkeys.