Marina Beach spans 6 km (3.7 mi) between the deltas of Cooum and Adyar, and is the second-longest urban beach in the world.[339] Elliot's Beach lies south of the Adyar delta. Covelong Beach lies along the Coromandal Coast.[340] Madras Crocodile Bank Trust is a reptile zoo located 40 kilometres (25 mi) south of the city covering an area of 8.5 acres (3.4 ha) and had over 450,000 visitors in 2007.