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where the first three lighthouses were built.
To manage the new lighthouses a 30-year-old man from the county of Surrey, Mr. Archibald Baird, was recruited in England. He received training at Trinity House in London,13 for a fortnight, to gain experience with various Dioptric Lamps and their management.14 He also stayed with Messrs. Chance Brothers, the manufacturer of the apparatus, for another fortnight to acquire further working knowledge.15 He arrived in Hong Kong in 1874 in the capacity of Principal Light Keeper for Cape D'Aguilar. He was also responsible for the supervision of the lights at Cape Collinson and Green Island, although all these lighthouses were not yet in operation.
Green Island Lighthouse
Green Island Lighthouse started to operate on 1st July 1875, about three months after Cape D'Aguilar Lighthouse was set up. The illuminating apparatus was fixed dioptic of the fourth Order showing a red light on the bearings from N. 16 E. to S. 18 E. (146 degrees). From N. 16 E. to N. 44 W. (60 degrees) and from S. 18 E. to S. 25 W. (43 degrees) it showed a green light. The focal plane of the light is 95 feet above mean sea level and in clear weather it should be seen at a distance of 14 miles.16
The small round Green Island lighthouse tower is constructed of granite and is about 12 metres high. Its arched doorway is decorated with granite blocks with a cross-shaped opening above. In comparison to Cape D'Aguilar, Green Island Lighthouse cost much less, about one sixth of the cost for the Cape D'Aguilar lighthouse.17
When the Cape D'Aguilar Light became obsolete after the construction of Waglan Island Lighthouse, in 1893, Governor Henry Blake later proposed to move the lantern of Cape D'Aguilar to Green Island.18 In 1905 a higher and larger tower to accommodate the Cape D'Aguilar Light was completed and the new lighthouse on Green Island came into operation the following year. It has a round tower, is 17.6 metres high and is constructed of granite and concrete with a spiral staircase. The steel lantern on top of the tower is painted white.19