Senegal's Lake Retba, or as the French refer to it Lac Rose: harmless halophilic bacteria make the water pink. Lake Retba has a high salt content, much like that of the Dead Sea, allowing people to float effortlessly in the massive pink water.
"This is Flathead Lake in northwestern Montana, USA. The water is so transparent that it seems that this is a quite shallow lake. In fact, it is feet deep." It's not Flathead Lake unfortunately! It's Avalanche Lake :)
Lake Retba In Senegal Looks Like A Giant Strawberry Milkshake. That's because the blood red colour is caused by high levels of algae due to high salt content - with some areas containing up to 40 per cent of it.
Lake Retba also known as Lac Rose meaning Pink Lake, lies north of the Cap Vert peninsula of Senegal. Named for its pink waters caused by Dunaliella salina algae and is known for its high salt content, up to in some areas.