Trwyn Du Lighthouse

Trwyn Du Lighthouse, also known as Penmon Lighthouse,[3] is a lighthouse between Black Point near Penmon and Ynys Seiriol, or Puffin Island, at the eastern extremity of Anglesey, marking the passage between the two islands.

Trwyn Du Lighthouse
Penmon Point
Trwyn Du Lighthouse
United Kingdom
Coordinates53.312994°N 4.040630°W / 53.312994; -4.040630
Constructionstone tower
Tower height29 m (95 ft)
Tower shapecylindrical tower with balcony and lantern
Markingswhite and black bands tower, white lantern
OperatorTrinity House[1] [2]
HeritageGrade II* listed building 
Focal height19 m (62 ft)
Lens1st Order catadioptric fixed
Intensity3,088 candela
Range12 nmi (22 km)
CharacteristicFl W 5s.
NGA no.5420
Fog signalbell stroke once every 30s.
Admiralty no.A5140 
ARLHS no.WAL-031
Trwyn Du Lighthouse