Mmabatho capital of Bophuthatswana.
Hot and high, 4,172 ft with long runway parameters, 4,499 mtrs, VOR & NDB, excellent weather and little disruptive winds, little traffic, a vast general flying area, nothing to do except study and the fleshpots of Sun City available at a 2.5 hr drive away and the shops sell beetroot.
It's a hot candidate for the unsung flying school of the world and they shoot short wearing gun toting fat bellied Afrikaner trouble makers there too and Baden Powell got into trouble there for using lepidoptery as a cover for spying. So the place has an interesting little historical pedigree.
The joys of Botswana and Lobatse also await you, a short skirmish with the bush trails to the north.