Lake Natron is on the border of Tanzania and Kenya. It is fed by the Ewaso Ng'iro River, which is formed by hot springs rich in minerals such as sodium, alkaline and magnesium. High levels of evaporation in the dry season cause the alkalinity of the lake to reach a pH as high as 9 to 10.5 and the water to become as shallow as tens of centimeters, thus revealing the colorful patterns at the bottom of the lake, like an uncanny workmanship of nature. The lake is the paradise for the flamingos, which often fly over the lake in groups. I was lucky enough to be at the right place at right time.