<P> Botswana also produces soda ash through Botash, a joint venture between the government and South Africa's Chlor - Alkali Holdings (CAH) Group . Botash has been operating in the Sua Pan in northeastern Botswana since April 1991 . Production of soda ash is estimated at around 420,000 per annum and is exported to South Africa, Zambia, Zimbabwe, Malawi and the Democratic Republic of the Congo . </P> <P> Tourism is an increasingly important industry in Botswana, accounting for almost 12% of GDP . One of the world's unique ecosystems, the Okavango Delta, is located in Botswana . The country offers excellent game viewing and birding both in the Delta and in the Chobe Game Reserve--home to one of the largest herds of free - ranging elephants in the world . Botswana's Central Kalahari Game Reserve also offers good game viewing and some of the most remote and unspoiled wilderness in southern Africa . </P> <P> A number of national parks and game reserves, with their abundant wildlife and wetlands, are major tourist attractions . The wildlife, including lions, brown hyenas, cheetahs, leopards, wild dogs and antelope, was described in great detail in the best - selling book Cry of the Kalahari by Mark and Delia Owens . </P> <P> The main safari destinations for tourism are Moremi Game Reserve in the Okavango Delta, and Chobe National Park . Botswana is also participating in community based natural resource management projects by trying to involve villagers in tourism . One example is the village of Khwai and its Khwai Development Trust . </P>

What does each export contribute to botswana's gdp