The cache is not at the posted coordinates
This is a bonus physical cache for the Adventure Lab entitled "van Stadens Wild Flower Reserve. You must successfully complete the Adventure Lab in order to find this one.
Play the Adventure Lab here: https://labs.geocaching.com/goto/vanStadensReserve
Or you can scan this QR code to play

The Adventure Lab has 5 Locations. You need to obtain the required numbers from each of the Answers for the 5 Locations. The numbers are shown in the journal for each stage. Please note you have to page through the journals to see the last answer.
The cache can be found at S33 AB.CDE E25 FG.HJK