Fishing, along with Para marine activities like Dry fish ,Prawn farming constitues the second Major economy for the district. The marine ecosystem provides mankind with food, medicines, industrial products and pleasure.
This was the only busy trade centre on the Coromandal coast for the Danes.This fort was declared as a protected monument by the Department of Archaeology, Government of Tamilnadu in 1977 ADThe Danes constructed fortifications on the coast at Tranquebar. This fort was a busy trade centre till 1845 AD when the Danes handed over the fort to the English. It was used as a Public Works Department Travellers Bungalow for government servants and colonials till 1977 AD.