Visit the ancient city of Mahabalipuram, famous for its intricately carved temples and stone-cut sculptures. Explore the UNESCO World Heritage sites such as the Shore Temple, Pancha Rathas, and Descent of the Ganges. Don't forget to buy some souvenirs from the local market.
Start your day by visiting Fort St. George, the first English fortress in India, now serving as the administrative headquarters of Tamil Nadu state. Next, head over to Marina Beach, the second-longest urban beach in the world. Relax on the soft sand or take a dip in the Bay of Bengal. In the evening, enjoy some street food from the vendors along the beach.
If you have more time, consider visiting the Kapaleeswarar Temple, Government Museum, or the San Thome Basilica. If you have less time, skip Fort St. George and spend more time at Marina Beach. Make sure to carry sunscreen and stay hydrated during your trip. Avoid visiting during peak afternoon hours due to the heat.