Has anyone ever been to Zakouma National Park in Chad? I'm going to be going through the country on my way between Cameroon and Niger, and was wondering if it is worth spending an extra day or two to take a quick safari. Is the park well-run? What are prices like? Are there knowledgeable guides and game drives available? Or is it not worth the bother? If not, are there other game reserves in central Africa that I should visit? Thanks for help.