Mahabalipuram is approximately 60 km away from Chennai. One can travel there by bus or local taxi or own vehicle. In Mahabalipuram Temple, one can find many old sculptures, among which a Sanctum of first Shiva Shrine and a big idol of reclining Lord Vishnu, are magnificent. The striking feature is that all the sculptures are carved from a single big rock. Leave as early as possible so you will be able to enjoy on the way mile stones such as Crocodile Park and Tiger cave rock cut temple. And yes don’t forget walk over rocks on the beach. It’s a great experience.