Barbados

Free visa for South Africans and French stamped in your passport on arrival.
For a list of countries that do require visa see here.

You will get a stamp for only the number of days you fill in on the immigration form. We originally planned to stay for a week and then decided to extend for a few days. We should have asked for 2 weeks at the airport as she only asked whether we had a ticket out but she didn´t ask to see it.

In order to extend you have to go to:
Barbados Immigration Department
Careenage House, The Wharf
Bridgetown,
Barbados
Tel: (246) 426-1011

You need to be there by 08:15 at the latest when the office opens. You will need to join the scrum to get in, get a number and queue. You need to provide a passport photo and proof of your leaving date with BD$50.
You will then need to go back and collect your passport before you leave.

It would be so much easier and cheaper if you tell the immigration person at the airport you may extend and hopefully if you smile enough you may get a longer stamp.