Serengeti National Park, the largest of the northern safari parks, is renowned for the abundance of wildlife. The Serengeti is mostly grassland plains and acacia scrub dotted with rock outcrops known as kopjes, which serve as both hideouts and lookouts for many species of animals. Many clients visit the Serengeti during the gregarious procession of millions of wildebeest and zebra in their search for water and food. The famous migration offers excellent opportunities to view animal behavior as well as the chance to see a kill.