"Situated north of the Cap Vert Peninsula in Senegal, northeast of
Dakar, Lake Retba, or as the French refer to it Lac Rose, is pinker
than any milkshake you’ve ever come face to straw with.
And once you see it, you too will agree that a sippy straw may be in order over a boat.
Experts say the lake gives off its pink hue due to cyanobacteria, a harmless halophilic bacteria found in the water.
If the color weren’t enough to make you smile, it should be known
that Lake Retba has a high salt content, much like that of the Dead
Sea, allowing people to float effortlessly in the massive pink water. In
fact, Lake Retba has an almost one and a half times higher salt content
than the Dead Sea."