Lake Eyasi is a lake located in Karatu District of Arusha Region in north Tanzania. Lake Eyasi is the largest body of water in Arusha region Lake Eyasi is a soda lake surrounded by volcanic mountains. The Hadzabe, bushmen who still hunt for food, live around Lake Eyasi. Meet the heirs of the very first people, who still have a symbiotic relationship with their environment. The purest example of an anarchist society with no rules.