Lake Retba

Lake Retba, also known as Lac Rose lies north of the Cap Vert peninsula of Senegal, north east of Dakar.
It is so named for its pink waters, caused by salt-loving a harmless bacteria, Dunaliella salina in the water – “They produce a red pigment that absorbs and uses the energy of sunlight to create more energy, turning the water pink,” said Michael Danson, an expert in bacteria from Britain’s Bath University. The organism functions here becaus of the high-salinity environment. The color is particularly visible during the dry season.

Covering an area of about 3 sq km, the lake is located about 35km north-east of Senegal’s capital Dakar. Since the 1970s, local residents have been mining Lake Retba for its salt, which they use mainly to preserve fish.

The salt content is very high, as much as 40%, which is almost one and a half times higher than in the Dead Sea – three hundred and eighty grams per liter. Alike to the Dead Sea – it allows people to float easily.

Isn’t nature fascinating?

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