Mamba Waterslide at Sun City 866.988.5283 South Africa on your Bucket List? Join Christine Turner as you vicariously slide down the Mamba - the indoor waterslide at Sun City's Valley of the Waves. With only intermittent light, you have no idea when twists, turns, and dips are coming your way. Enjoy the video then call to book your trip to Sun City so you can try it for yourself!