The Skerries lighthouse is situated on an island a few miles off the northwest coast of Anglesey. Special arrangements must be made to visit the lighthouse which is often an important site for seabirds and their nests. The lighthouse is unmanned, but often used by bird wardens and other guardians of the nature reserve. (Photo: Ken Trethewey, 2014)
A view from the landing site on the northeastern side. (Photo: Ken Trethewey, 2014)
A view from across the island. All nesting birds were absent at this time in late September. (Photo: Ken Trethewey, 2014)
External view showing the lantern for the subsidiary light. (Photo: Ken Trethewey, 2014)
An old external store. (Photo: Ken Trethewey, 2014)
A new external store! (Photo: Ken Trethewey, 2014)
Behind the solar array panel. (Photo: Ken Trethewey, 2014)
Approaching the main entrance. (Photo: Ken Trethewey, 2014)
Entrance to the main building. (Photo: Ken Trethewey, 2014)
The entrance to the main building. (Photo: Ken Trethewey, 2014)
A circular storage area at the base of the tower. (Photo: Ken Trethewey, 2014)
Ascending the tower. (Photo: Ken Trethewey, 2014)
An internal window on an upper level. (Photo: Ken Trethewey, 2014)
View down the tower. (Photo: Chris Trethewey, 2014)
View inside the optic. (Photo: Chris Trethewey, 2014)
Approaching the island. (Photo: Chris Trethewey, 2014)
An entrance to keepers accommodation. (Photo: Ken Trethewey, 2014)
Close up of the lantern. (Photo: Ken Trethewey, 2014)
Looking down from the gallery to the landing cove. (Photo: Chris Trethewey, 2014)
The present fog signal. (Photo: Ken Trethewey, 2014)
Part way up the tower, this is the entrance to the subsidiary light. (Photo: Ken Trethewey, 2014)
The subsidiary light. (Photo: Ken Trethewey, 2014)
The service room level. (Photo: Ken Trethewey, 2014)
The service room level showing the ladder to the lantern. (Photo: Ken Trethewey, 2014)
View of the optic. (Photo: Ken Trethewey, 2014)
View of the light source inside the optic. (Photo: Ken Trethewey, 2014)
Close up of the light source. (Photo: Ken Trethewey, 2014)
A preserved early item that was used for the subsidiary light source. This is on display at a lower level in the tower. (Photo: Ken Trethewey, 2014)
(Photo: Ken Trethewey, 2014)
A landing in the accommodation section. (Photo: Ken Trethewey, 2014)
A rare early example of keepers' accommodation. (Photo: Ken Trethewey, 2014)
The recently added helicopter landing area. (Photo: Chris Trethewey, 2014)
Looking down from the gallery on the helicopter landing area and adjacent rocks. (Photo: Chris Trethewey, 2014)
Looking down from the gallery onto the solar power panel. (Photo: Chris Trethewey, 2014)
Trinity House Fire And Emergency Plan. (Photo: Ken Trethewey, 2014)
The landing cove on the eastern side of the island. (Photo: Ken Trethewey, 2014)
Inquisitive inhabitants... (Photo: Ken Trethewey, 2014)