Casquets lighthouses per ton of ship when vessels passed the rocks and in turn he paid Trinity House 50 pounds per year for the right to run the lighthouses. The lighthouses reverted to Trinity House in 1785. They were converted to oil lamps with metal reflectors which were first used on 25 November 1790; and upgraded again with apparatus to rotate a beam of light in 1818. This had a clockwork mechanism which was wound up every hour and a half and gave one flash every 15 seconds. The lighthouses were badly damaged and the lanterns smashed in a severe storm on
Woody Island Lighthouses level. The slope is easy on the landward or western side and falls steeply to seaward, culminating in an abrupt and discontinuous rocky escarpment towards the north which extends for about nine and a half kilometres. A small sandy beach is located towards the southern seaward point. The ground cover consists of sparse native grasses on two old lighthouse clearings and dune flats, with very little cover through the higher and timbered areas. The two lighthouse clearings are located at Middle Bluff and North Bluff. The lighthouses are no longer operational. The Middle Bluff lighthouse is relatively intact. It has