Uniquely beautiful Lake Eyasi lies at 1030m between the Eyasi escarpment in the north and the Kidero Mountains in the south. Like Lake Natron far to the northeast, Eyasi makes a rewarding detour on a Ngorongoro trip for anyone looking for something remote and different. The lake itself varies considerably in size depending on the rains, and supports a mix of waterbirds including huge breeding-season (June to November) populations of flamingos and pelicans. In the dry season it's little more than a parched lake bed, adding to the rather other-worldly, primeval ambience of the area.
The traditional Hadzabe lend a soulful human presence to the region. Also in the area are the Iraqw (Mbulu), a people of Cushitic origin who arrived about 2000 years ago, and the Datoga, noted metalsmiths whose dress and culture is quite similar to those of the Maasai.