Morning: Start your day with a nature walk through the Periyar National Park. You will be able to spot various species of animals, including elephants, tigers, and leopards.
Afternoon: Take a boat ride on the Periyar Lake, which is located inside the park. The boat ride will give you a chance to spot some wildlife and enjoy the beautiful scenery.
Evening: Visit the Kadathanadan Kalari Centre to watch a traditional Kalaripayattu martial arts performance.
Morning: Head to the Athirapally Waterfalls, which is one of the largest waterfalls in Kerala. Take a walk around the waterfall and enjoy the surrounding nature.
Afternoon: Visit the nearby Vazhachal Waterfalls and take a dip in the natural pools.
Evening: Drive to Guruvayur and visit the Guruvayur Sri Krishna Temple, which is one of the most important pilgrimage sites for Hindus in Kerala.
Morning: Take a backwater cruise on a traditional houseboat in Alleppey. Enjoy the calm and beautiful scenery of the backwaters as you sail along.
Afternoon: Visit the Kumarakom Bird Sanctuary, which is home to a variety of bird species, including migratory birds.
Evening: Head to Fort Kochi and watch a Kathakali dance performance at the Kerala Kathakali Centre.
If you have extra time, consider visiting Munnar to see the tea plantations and scenic hills. You can also take a side trip to the Wayanad Wildlife Sanctuary to see more wildlife.
To maximize your fun, try some local cuisine such as appam, puttu, and fish curry. You can also take a Ayurvedic spa treatment to relax and rejuvenate.
Lastly, don't forget to take back some authentic spices and tea from Kerala as souvenirs.