Salt flats are large, flat areas covered with salt and other minerals, formed when water evaporates from lakes or seas. As the water dries up, it leaves behind a crust of salt, creating a unique landscape. These areas can be found in various parts of the world, including the famous Salar de Uyuni in Bolivia. The salt crust can vary in thickness and texture, sometimes appearing as a shiny, white surface. Salt flats are often located in arid regions and can serve as important habitats for wildlife. They also attract tourists and photographers due to their striking beauty and vast, open spaces.