Visit the famous Padmanabhaswamy Temple, known for its intricate architecture and religious importance. Note that dress code is enforced and non-Hindu visitors are not allowed inside the sanctum sanctorum.
Explore the Napier Museum, which houses a collection of historical and artistic artifacts from Kerala. The museum is located within the lush Thiruvananthapuram Zoo campus.
Indulge in a delectable lunch at Villa Maya, a fine dining restaurant housed in a restored 18th-century Dutch bungalow. The restaurant serves a mix of Indian, Mediterranean and European dishes.
Relax at Kovalam Beach, one of the most popular beaches in Kerala. The beach offers stunning views of the Arabian Sea and is dotted with numerous shacks and eateries.
Visit the Vizhinjam Lighthouse, which was built in the 19th century by the British. The lighthouse offers panoramic views of the coastline and the sea. Note that the lighthouse is closed on Mondays.
Other family-friendly attractions in Trivandrum include the Science and Technology Museum, the Magic Planet amusement park, and the Kerala Legislature Museum. You could also consider taking a day trip to the nearby Ponmudi Hill Station or the popular backwater destination of Poovar Island. Make sure to try some of the local specialties such as the seafood, appam, and puttu. Enjoy your trip!