Follow Me: Mashatu Botswana Day 3

We spend a lot of our time driving in a dry riverbed looking to spot animal tracks. The rivers are mostly dry this time of year, but there is evidence of high water flow when they are flowing. The water flow cannot be sustained throughout the year since the water is supplied from another area with higher rainfall.
The black sand in the bed is a remnant of lava flow (I asked ) from who-knows how many years ago. Botswana does not have any active or dormant volcanoes, so it is more likely soil th...