During the wet season, the foliage runs wild. The Kalahari springs into life as the bush turns many shades of green. Open clay pans become small pools in the bush and it's a time of renewal, when a gentler light dapples Botswana's bush.

When the rains end, the leaves in the Kalahari gradually dry and many eventually drop. More greys and browns appear, and good shade becomes harder to find. Eventually, by late September and October, most plants look dry and parched, coloured from straw yellow to shrivelled brown.

However, note that large areas of the Okavango have their own permanent water supply – regulated more by the annual floods than the rainfall – and so don't follow this pattern so clearly. See the comment below on The Okavango's flood.