The Makgadikgadi Pans is situated in the central region of the country and covers approximate 12 000 sq km; the largest salt pans on the planet. There are two important salt pans, the 6500 sq km Ntwetwe Pan and the somewhat smaller Sua Pan.
These are the remains of a great lake that once covered most of northern Botswana, fed by rivers carrying salts filtered from the lake's catchment area. Because the basin had no outlet, the salts were concentrated in low lying areas. Less than 10,000 years ago, climactic changes caused the lake to evaporate, leaving only salt deposits, creating the wonderous area we now know as the Makgadikgadi Pans.
For most of the year the area is dried up, however, as soon as the first rains fall, the region plays host to an alluring display of animal life. The water encourages one of Africa's great migrations.