In the morning, visit Sri Padmanabhaswamy Temple, one of the most famous temples in Kerala. This temple is dedicated to Lord Vishnu and is a classic example of Dravidian-style architecture. Afternoon is a great time to visit the nearby Pazhavangadi Ganapathy Temple, where you can see the large idol of Lord Ganesha. In the evening, take a stroll at the beautiful Kovalam Beach and watch the sunset at the Lighthouse Beach.
In the morning, take a dip in the natural spring at the Papanasam Beach, which is believed to wash away sins. You can also go for a swim or sunbathe at Varkala Beach, which is known for its stunning cliffs and clear waters. In the afternoon, visit the Varkala Aquarium to see a variety of marine creatures. In the evening, head to the Janardhana Swami Temple to witness the beautiful evening pooja.
Other local attractions you may want to check out include the Napier Museum, Kuthira Malika Palace, and the Kanakakunnu Palace. If you have time for a side trip, consider taking a day trip to the backwaters of Alleppey or Kumarakom. To maximize your fun, you may want to try some local cuisine such as dosa, idli, sambar, and chutney. Don't forget to explore the local markets and shops for souvenirs.