The cache is NOT at the posted coordinates!
This is the Bonus Cache to adventure lab caches "Heritage Building Walk", Part 1 and Part 2. I recommemd to take good note of the answers to the lab caches as you will need them to solve this mystery!
The coordinates will only be available once you have completed both labcaches which you find in your Adventure Lab Cache app or here:
https://adventurelab.page.link/DZwM
https://adventurelab.page.link/nNXg.
Click below to get your final coordinates after you have taken note of the answers (or photos provided with the answers) of both lab caches.
For more information on Knysna Historical buildings and an online flyer with a suggested walking route see: https://www.knysnamuseums.co.za/pages/knysna-open-plaques/