There are two local special event stations you can look out for.
ZS95SARL celebrates the 95th birthday of the SARL and ZS1820S celebrates the 200th anniversary of the landing of the 1820 Settlers.
Both call signs are active on HF and ZS95SARL has been active on satellites as well.
During October, the Astronomical Society of South Africa will be celebrating its 200th anniversary. It was established in Cape Town in October 1820. Here is an opportunity for another special event station.