I keep on file "mock seasons" I've created. A sort of wishlist containing a "dream cast", a route, challenges and twists. One particular "mock season" had the route:
Cape Town, South Africa (x2) --> Victoria Falls, Zambia/Zimbabwe --> Port Louis, Mauritius.
I cannot believe it came to reality, just so happens it was not a US Season. Really surprising as I've wanted a Season with 4 African countries.