Travelers on safari in this land of only 1.7 million people get an eye-full of the tropical birds and large game - from lions, leopards and cheetahs to ostriches, antelope and zebras - that have the run of large stretches of the country. Mineral-rich Botswana can afford to encourage only low-volume, high cost tourism; thus, travel here can be expensive. Accommodations run the gamut from riverbank campsites to plush lodges.Botswana boasts lots of wide-open space and wildlife to fill it.