Visit the Dutch Fort which was once a magnificent sight. It might be crumbling with age today, but still is a wonderful piece of history to explore. The structure was first built by the Portuguese in the year 1628 and 10 years later was taken over by the Dutch. It last fell under the command of the British. Today, inside are various administrative offices, but the ruins can still be explored. There are watchtowers, an English cannon and a ruined bell tower worth inspecting. The views of the lagoon from here are the grandest. You can also visit a museum displaying artefacts, but the information is all in Tamil. You can also visit the old prison which is now a shop.