Tips.

https://thingstodowithkids.co.za/

National lists with filter per city / area
https://www.capetownmagazine.com/free-and-cheap-things-in-cape-town-kids
http://www.travelstart.co.za/blog/45-fun-family-vacation-activities-in-south-africa/
https://www.tripsavvy.com/activities-for-children-in-south-africa
https://www.jozikids.co.za/johannesburg/day_trips/action/indoor/johannesburg/
http://www.getaway.co.za/activities/kids-things-to-do-school-holidays-johannesburg/
https://www.youbabyandi.com/15-places-to-visit-with-kids-in-johannesburg/
https://www.essentials.co.za/lifestyle/fun-things-to-do-in-johannesburg-with-kids
http://www.getaway.co.za/activities/kids-things-to-do-school-holidays-cape-town/
https://www.capetownmagazine.com/to-do-kids
https://www.capetownmagazine.com/free-and-cheap-things-in-cape-town-kids
https://www.themomdiaries.co.za/things-to-do-with-kids/
http://www.travelstart.co.za/blog/things-to-do-port-elizabeth-under-r100/
http://blog.nmbt.co.za/blog/entry/10-things-to-do-with-kids-in-and-around-port-elizabeth
https://www.activeactivities.co.za/directory/category/play/indoor-play-centers/location/eastern-cape/port-elizabeth/
http://www.getaway.co.za/activities/kids-things-to-do-school-holidays-durban/
https://www.essentials.co.za/lifestyle/the-ultimate-fun-list-of-things-to-do-in-durban-with-kids