Visit the historic Fort Kochi, an old town with colonial-style buildings and streets. See the famous Chinese fishing nets, St. Francis Church, and the Dutch Palace. For foodies, try the local specialty of appam and stew.
Drive to the lovely hill station Munnar. See the stunning tea plantations, admire the Attukad Waterfalls, and hike in the Eravikulam National Park. Don't miss the shops selling locally grown tea, spices and fruits.
A trip to Ooty, a charming hilly town with stunning natural beauty. Visit the Botanical Garden housing a variety of exotic plants and trees, and the Ooty Lake for boating. Ride the Nilgiri Mountain Railway train and hike in the nearby Doddabetta Peak for breathtaking views.
A visit to the hill station Yercaud , a hidden gem of Tamil Nadu. Visit the Lake for boating, Lady's Seat for a panoramic view of Salem city, and the Kiliyur Falls for a dip in the waterfall. Take a stroll in the botanical gardens and have a taste of the local sweets like jackfruit halwa.
End your trip by exploring Coimbatore, a bustling city with various temples and street markets. Visit the Marudamalai temple, the Dhyanalinga Yogic Temple, and the VOC park with its variety of trees. Finish your trip by tasting the delicious local street food like masala dosa and vada.
If you have more time, add a day for sightseeing in Kochi, visiting the tea factories in Munnar or the Sim's Park in Coonoor. If you have less time, consider excluding Yercaud or Coimbatore. Remember to always check opening and closing times of all places before visiting.