About one hour drive outside of Harare (Zimbabwe) is the beautiful Arcadia Dam. When we were in Harare for a wedding at the end of April, we went to that dam with my brother-in-law, who also has a boat there; an Aquascape, a boat designed and built by my father-in-law.
I was introduced to tubing and wakeboarding there. The wakeboarding was quite challenging, but on day 2 I was able to get up (even if it were only briefly). We had loads of fun in this stunning location.