|There are a few places in South Africa where you can buy a unicycle. The best and most convienient is to contact OddWheel Unicycles in Johannesburg. There is also a link under the "Web Links" item in the Main Menu. They usually ship items within 2 days if they have stock available to anywhere in South Africa. You will of course need to pay for the shipping costs.
You can also contact your Local Bike Store (otherwise known as an LBS) and enquire whether they will be able to supply you with a unicycle. Many of them however do not supply unicycles, and if they do the unicycle will usually be a no-name Chinese import. These unicycles are more than adequate for learning on and riding around the neighbourhood with, however if you want to progress into doing tricks or Mountain Unicycling you will need a stronger unicycle which you can get from Oddwheel Unicycles.
If you are unsure of which unicycle to buy there is some detailed information in the Frequently Asked Questions in the Uniycle Information wiki, accessible through the Main Menu.