Lucky Ridgeway, he got to walk across Kenya, albeit in the company of armed park rangers, while the rest of us tool around in mini-vans and Toyotas. The veteran of high peaks, Antarctica, the Amazon and other formidable destinations recounts his walk from Mount Kilimanjaro across Tsavo National Park to the Indian Ocean in the company of Iain Allan (and an armed guard). It's a perceptive overview of Kenya, its wildlife and conservation by an appreciative observer. He weaves history, philosophy and thoughtful observation into this marvelous account.  (EAF61, $17.00)