Yala is Sri Lanka is most famous national park. It is also known as Ruhunu National Park. It was at first established in the early 1890s as a game sanctuary . Yala is an ideal place to spot the “big four” of Sri Lankan wildlife, the elephants, the sloth bear, the illusive leopard and the wild buffalo, the unsung denizen of the park, if nothing else dangerous to the extreme. This variety in habitats provides an excellent range in wildlife. The largest concentration of Leopards can be seen in this region though the chances of seeing this animal are very low, and the creature is said to be one of the most endangered species. The Sri Lankan leopard is also known to be the biggest of the eight known species of leopards world over, with the possible exception of Amur leopards. The largest concentration of Leopards can be seen in this region though the chances of seeing this animal are very low, and the creature is said to be one of the most endangered species. About 32 species of mammals, 125 species of birds and many reptiles and lagoon fauna species have been recorded in the park.