Lake Natron

Photo

by Richard Mortel from Riyadh, Saudi Arabia

/ CC BY 2.0

Lake Natron is a unique and highly alkaline lake located in northern Tanzania, near the border with Kenya. Known for its striking red and orange hues, the lake's coloration is due to the presence of salt-loving microorganisms and cyanobacteria. The water's high alkalinity, with a pH as high as 10.5, is a result of sodium carbonate and other minerals that flow into the lake from surrounding volcanic activity. This harsh environment is inhospitable to most wildlife; however, it serves as a critical breeding ground for the lesser flamingo, which feeds on the lake's abundant algae.