Use {{location|ZA}} to tag expeditions that took place in South Africa. It will add Category:Meetup in South Africa to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the province that the expedition took place in.
If the category link appears red, do not worry and create the category. Make sure that it is included in the appropriate parent category, for instance, Category:Meetup in Gauteng is a subcategory of Category:Meetup in South Africa. The subcategories should be sorted in by their respective code.
Examples
{{location|ZA}}: South Africa{{location|ZA|GP}}: Gauteng
