Hi Penny
Yes, CashCase would be fine on this holiday. You will be able to use it at ATMs and in many shops and restaurants. Have a look at this link for more details on how it works:
http://www.cashcase.co.uk/justyou
As a tourist, you may take up to 5,000 South African Rand into the country, which is about £400.
We are working to make all excursions bookable in advance and many holidays do now work in this way but I'm afraid you can only use cash for this holiday at the moment. If you are worried about carrying a lot of cash, your CashCard will be very useful as you can withdraw cash only when you need it.
Kind regards
Olly, your editor