The Himba are an ethnic group with an estimated population of about 50,000 people living in northern Namibia, in the Kunene Region and on the other side of the Kunene River in southern Angola. There are also a few groups left of the OvaTwa, who the OvaHimba consider to be part of their tribe, but are hunter-gatherers. Culturally distinguishable from the Herero people, the OvaHimba are a semi-nomadic, pastoralist people and speak OtjiHimba, a language related to the Herero, which belongs to the Bantu family within Niger–Congo. The OvaHimba are semi-nomadic as they have base homesteads where crops are cultivated, but may have to move within the year depending on rainfall and where there is access to water.