Explore the cultural landmarks of Chennai such as Marina Beach and Kapaleeswarar Temple. Then head over to Government Museum to learn about Tamil Nadu's rich history. End the day with some shopping at Phoenix Marketcity or Express Avenue Mall.
Visit the stunning Varkala Beach also known as Papanasam Beach for its spiritual significance. Take a dip in the natural mineral-rich waters and enjoy the cliffside views. Visit the Janardanaswamy Temple, and Kappil Lake. Sample some local seafood delicacies at Sea Queen Restaurant.
Board a houseboat in Alleppey Backwaters to enjoy a peaceful and scenic ride. Visit the Alleppey Beach and see the 19th-century Alappuzha Lighthouse. Explore the International Coir Museum or relax with authentic Ayurvedic massages at Harmony Ayurveda Centre.
See the powerful Athirapally Falls, a famous movie location, and go on a jungle safari to spot monkeys and other animals. Explore the Vazhachal Falls and have a picnic by the streams. End your day with a visit to Snehatheeram Beach to see the sunset.
Take a jeep safari to the Anamalai Tiger Reserve and explore the beautiful tea plantations. Visit the Nirar Dam to see stunning views of the mountains and the lake. End your day with a visit to Chinnakallar Falls, a hidden gem, and enjoy a hot cup of tea at the Tea Estate.
If you have more time, consider adding: a trip to Mahabalipuram from Chennai, a night stay on a houseboat in Alleppey, birdwatching at Kadalundi Bird Sanctuary near Varkala, or exploring Valparai's Monkey Falls. With less time, consider skipping Chinnakallar Falls or Athirapally Falls, or reducing the time spent at shopping and museums.