The Sahara Desert is a very harsh place with a unique landscape. It is the biggest desert in the world and stretches across many countries in Africa. The desert is very hot and dry, making it difficult for plants and animals to survive. The landscape is mostly made up of sand dunes, which are big hills of sand. Water is very scarce in the Sahara, which means there is not a lot of it. People and animals have to find creative ways to get water to survive in this tough environment.