Plans in Joburg or surroundings until the 18th? (Johannesburg)

Hi!

I am here for work, arrived yesterday and leaving wednesday evening back to Amsterdam and then Madrid so I am really keen to meet people and join any plan for these days as I am quite "lost" in here! Also I am planning some safaris/plans for the weekend so it would be great if anyone wants to join or have any tips on what to do, where to go, who to contact.

Thanks in advance!

Javi