Theory:

Beaches in Tamil Nadu 
Tamil Nadu being a Coastal state in India with several beaches, and among them, some are world-famous tourist spots. Beach is a lovely place to hang around with friends, families and kids. All these are ideal destinations for sun-bath relaxation and water sports activities.
 
Marina beach chennai.jpg
Marina beach, Chennai
 
S.No.
Beaches
Geographical features
 1.Kovalam beach Kanchipuram - Small fishing village
 2.Marina Beach Chennai - Second longest urban beach
 3.Kanyakumari BeachMulti-coloured sand
 4.Rameshwaram Beach Waveless beach
 5. Elliot BeachChennai - Beautiful beach active in day and night
 6.Mahabalipuram BeachKanchipuram Architectural and Archeological beach
 7.Silver BeachCuddalore - Water sports is the entertainment
 8.Muttukadu BeachKanchipuram - Calm and Shallow