The lighthouse at Trwyn Du (Black Point) dates from 1838. The light is now solar powered and the lighthouse has been unmanned since 1922. The sign warns that there is no passage between lighthouse and land - seemingly obvious, at least at this state of the tide.
Uploaded to Geograph by Stephen McKay on 31 March 2013
Photo © Stephen McKay, 31 March 2013. Licensed for reuse under this Creative Commons licence