What's not included in your safari
Minimum requirements for tourists entering these countries, that don’t need a visa:
To be in possession of a valid passport which is valid for at least 6 months beyond intended departure date from Namibia.
To be in possession of valid return / onward air ticket or proof of other means of transportation enabling him to leave the country. You will be issued with a visitor’s visa at the border (maximum stay 90 days).