An area of Southeast Kenya divided into two game parks - Tsavo East and Tsavo West. It is bisected by the main highway running between Nairobi and Mombasa, and by the main road running from Moshi, in Tanzania to Mombasa. Tsavo is one of the most wild parks in East Africa, with many types of animal.
Of special note are the lions of Tsavo, which featured in the movie The Ghost and the Darkness. I think the movie was actually filmed in South Africa, but the setting was in Kenya. In fact, if you take the train from Nairobi to Mombasa, the current bridge goes right beside the bridge the movie talks about.