I stayed at a hotel called African Pride Mount Grace Country House & Spa in South Africa not too far from Joburg and Pilanesburg. It can be booked using Marriott/Spg points starting at 15,000 Marriott points/night. The villas have big private pools and I was upgraded to one, I can honestly say it was probably the greatest use of points I ever did, the place was absolutely amazing! Absolute steal, and just an amazing stay.