Walking is not allowed inside Ngorongoro Crater, unless you are a Maasai tribe member. They are the only people currently [they were once again allowed in the 90s after restrictions] who are allowed to bring their cows [cattle] into this wildlife-dense eco-system. The number of cows a person owns displays the patriach’s wealth. Its their currency. They depend on it for meat, milk and blood. Yes, blood. Maasai tribe members fill their gourds with milk and blood.
Maasai have coexisted with wildlife for generations. They used to live in the now Serengeti National Park, Ngorongoro Conservation, and Masai Mara and its wider area in Kenya area until these areas were designated National Parks or conservation.
Today, in Tanzania, they continue to live in Ngorongoro Conservation Area. You can stop at one of the boma [homestead] for a quick visit – a tourist stop – or you can go to a private conservation in areas like Longido [east of Serengeti] such as Alamana Reserve. Here, you can spend time understanding and learning about the unique, fascinating, and changing Maasai tribe.