I don't need a visa to South Africa for a stay of up to 90 days. I can simply show up and get a stamp (not visa) at the airport and get in. My intention, however, is to stay 4-6 months. Rather than going through the process of extending the visa, is it possible to simply get out of the country for a day and then receive a new 3 months' visa when you come back? Anybody's done this?