Color-changing waters: Lake Natron, Tanzania
At first glance you might think that what you’re looking at in the first picture of the collage above is land. However, it’s a pink lake. Due to its high salinity, temperature of more than 40°C (104 °F), and an alkalinity that can reach a pH of greater than 12, it’s one of the most lethal and dangerous lakes on Earth. Depending on the time of the year, algae and bacteria proliferate in it, causing its color to change.
The evidence is everywhere, but some people just can't handle it.