 The pair then turn their attention to primates, visiting a chimpanzee rehabilitation centre and tracking mountain gorillas in Uganda's Bwindi Impenetrable Forest.At Queen Elizabeth National Park, close to the border with the DRC, Carwardine is pleased to find that elephant numbers have increased from a handful of animals to over one thousand, showing that anti-poaching patrols are working.At this point, Carwardine, who has been receiving news from contacts though the trip, decides that it is too risky to cross the border, as the eastern DRC is gripped by the Kivu conflict, and the journey to Garamba National Park, where the rhinos were last sighted in 2006 would involve travelling through the fighting.