Explore the Marina Beach, have some local street food and watch the sunset at the Kapaleeswarar Temple.
Explore the ancient Shore Temple and the Pancha Rathas. Take a boat ride in the Bay of Bengal to see some historical monuments.
Take the Nilgiri Mountain Railway to reach this serene hill station. Visit Sims Park and take a long walk through their beautiful gardens.
Visit Tea Museum to learn about the history and making of tea. Take a simple Trek to the Droog Fort and enjoy the beautiful views.
Visit the beautiful Doddabetta Tea Park and St. Stephen's Church, which is more than 200 years old. Take a horse ride in the Ooty Lake.
Visit the Bryant Park and boating at Kodaikanal Lake. Walk through Coaker's Walk and get a beautiful view of the valley below.
Visit the Berijam Lake and have a picnic or go for a trek in the nearby Pillar Rocks.
You can extend your stay in any of these locations to spend more time exploring. If you have more time, consider adding a trip to Kanyakumari, the southernmost tip of India. If you have less time, you can skip Coonoor and go directly from Mahabalipuram to Ooty. Some places may be closed during certain times of the year, so make sure to check the opening and closing times before planning your itinerary.