I like something that is softer than a hiking boot sole. In the Limpopo you will probably do a lot of stalking and in September it is usually dry. Something like a Clark's desert boot that has a crepe sole has worked for me or even running shoes work. Just make sure they are broken in and support your feet properly.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor