35-50 years of age
Botswana offers an extensive variety of game and bird species. The country’s habitat is however not very diverse. The bush experience is however maintained with rustic camping sites and well integrated lodges, etc.
20-35 years of age
My impression is the delta is hit or miss. It will either be the most amazing safari in africa or a real disappointment. It all depends on the wildlife that is on the islands you visit for your nature walks.
Botswana has some very beautiful areas, such as Makgadikgadi, Chobe, Moremi and Okavango Delta, with loads of wildlife. However, it's close proximity to South Africa makes it a busy place. Many campsites in National Parks need to be booked more than a year in advance. This pre-arrangement doesn't give the country a real 'bush-vibe', although some gems, such as Makgadikgadi still feel very much like the real deal.
In my oppinion Botswana offers some of the best wildlife viewing and birdwatching in Africa, combined with friendly people, knowledgable guides and comfortable accommodation in various price classes.