Besides talking in it’s beautiful wildlife, lovely flora and fauna in various national parks and game reserves together with pristine coastlines beeches hotels, consider setting aside some time to visit it's indigenous people, especially the Masai of Eastern Africa whose way of life haves remained relative unchanged dispute modernization happening all around them and aside from learning from the cultural experience it may turn out to be the highlight of your vacation.
My recommendation is a visit Kenya's Masai Mara reserve which will allow you to experience both the wildlife and the Masai cultures at the same time. You are sure to capture some great photographs to remember your trip by and in the process learn something new about an indigenous people.