The center has one of the world's largest collections of reptiles and has bred 14 of the 23 existing species of crocodiles and alligators.[341] The Arignar Anna Zoological Park, one of the largest zoological parks in the world, annually attracts nearly 2 million visitors.[342] The city boasts two popular beaches, the Marina and Elliot's. Guindy National Park, a protected area of Tamil Nadu, has a children's park and a snake park, which gained statutory recognition as a medium zoo from the Central Zoo Authority of India in 1995.