Thangassery is a place of historical importance situated 5kms.away from Kollam town. The The chief attraction of the place is the light house, built in 1902. The 144 ft.light house stands as a sentinal, warning seamen of the treacherous reefs of Thangassery. The construction of a fishing harbour is in progress. Thangassery was an enclave of the Portuguese, Dutch and British in succession.