During the 18th century a light was placed on the tower to guide fishing boats into the harbour. A local vicar, either John Goulden in 1764 or Walter Harris in 1799, raised a subscription amongst the local population to replace the light on the church. A four-storey round tower was built next to the church, being completed in 1801. This was taken over and improved by Trinity House, in 1829. Funds from the sale were used by the vicar, Rev David Davies, to improve the area in an attempt to create a spa town. Trinity House operated the lighthouse until 1832 when it became inactive and was replaced by the High and Low lighthouses. The round tower was later shortened to two storeys, to prevent any confusion with the High Lighthouse.