Kattupalli Island, untouched by urbanisation, is located 25 km north of Fort St George and 5 km from Ennore Port. Spread across 18 sq km, this island has 12 hamlets, ringed by the Bay of Bengal on the east, Ennore Creek on the south, Pulicat Lake and the Buckingham Canal on the north-west. Fishing and agriculture are the main source of livelihood for the majority of the population.
The main features of Kattupalli Island are its natural sand dunes, availability of fresh water and its rich greenery. Cashew, coconut and paddy are the main agricultural produces.
The protected Olive Ridley sea-turtles breed on the Kattupalli beach.