The unusual hue of Lake Retba—located northeast of Dakar, Senegal—is due to harmless cyanobacteria in the water. Thankfully it’s nothing like the crazy dye used to turn the rivers green during St. Patrick’s Day festivities in Chicago.
Although it looks like a strawberry milkshake (or Pepto Bismol, anyone?), you wouldn’t want to drink the water because of its salinity. Just like the Dead Sea, the high amount of salt in the water allows swimmers to float effortlessly. And floating on pink water seems so much more exotic than regular ol’ pool water, doesn’t it?