Next to the Shore Temple there is a long beach. The area is suitable for sun bathing and swimming. Further North, along the road to Chennai, you will find some nice beach resorts. A good place to stay if you want to spend some days at the beach while in India.
Mamallapuram has a good offer of accommodation. From cheap hotels for backpackers to luxury resorts by the sea with swimming pools and spas, everyone will find a nice place to stay.