The harbour light at Donaghadee has got to be one of the most impressive of its kind in the United Kingdom, and it certainly wouldn't look out of place perched on some isolated offshore rock.  It dates from 1836 and, in 1934, became the first lighthouse in Ireland to be converted to electric power.  In 1902 the tower was severely damaged by fire but it was fully rebuilt and restored to operation.  The station does have a fog siren but this is only sounded in foggy conditions if a ship is due to arrive.  The pier on which the light stands is publicly accessible but, if my memory serves me correctly at this distance in time, it is probably easier to obtain a good photograph by standing back a bit and there are several other possible viewpoints around the harbour area.  The pier runs roughly sout-west to north east and the light is likely to be pretty cooperative for most of the day.