Which lake has the highest salt concentration in the world?

In the scorching, otherworldly landscape of Ethiopia’s Danakil Depression lies Gaet’ale Pond, a small body of water that holds the prestigious title of the world’s saltiest lake, as recognised by the Guinness World Records. The lake’s salt concentration is a staggering 43.3 percent by weight. If you thought the Dead Sea and Antarctica’s Don Juan Pond were salty, Gaet’ale surpasses these hypersaline lakes effortlessly. The Guinness World Records lists Gaet’ale Pond in Ethiopia’s Afar Region as the saltiest body of water on Earth. With a salinity level of 43.3 percent, it outpaces Don Juan Pond in Antarctica at 40.2 percent and leaves the Dead Sea’s 23.1 percent far behind. For context, the average salinity of oceans is just about 3.38 percent. Dominated by magnesium chloride and calcium chloride, Gaet’ale Pond’s hypersaline waters create such an extreme environment that most forms of life cannot survive there.Gaet’ale Pond is nothing short of captivating. Located in the Danakil Depression—one of the hottest and lowest places on Earth at 120 meters below sea level—it feels like stepping onto another planet. The landscape stretches endlessly with salt flats of varying shapes and sizes, punctuated by volcanic craters and hydrothermal springs. But the otherworldly scenery isn’t the only thing that hits you. Almost instantly, the air carries a strong whiff of sulphur, unmistakably reminiscent of rotten eggs. Add to that the relentless heat, and the experience becomes even more surreal.Gaet’ale Pond is one of several small water bodies near the Dallol Spring, formed over a hot spring with no inlet or outlet streams, leading to intense evaporation and salt accumulation. Gaet’ale may be big on salt content, but it is modest in size, covering just 0.03 sq km. Virtually nonexistent rain is one of the main reasons for its small surface area. While the pond is absolutely inhospitable for fishes and other life forms, microbes such as halophiles can not only survive here, they create a unique ecosystem too. But one that works only for them. Also, Gaet’ale is too remote and extreme for recreational use, making it a natural wonder to observe, not to experience - a rare marvel of nature and geological significance, and a reminder of Earth’s incredible diversity and extremes.