Ynys Llanddwyn - Lighthouse

Lighthouse

The lighthouse marks the western entrance to the Menai Strait.

The tower is tapered in a way characteristic of Anglesey windmills, it is 10.7 m (35 ft) high) and 5.5 m (18 ft) in diameter. It may have been constructed by an Anglesey stone mason, and it is possible that the tower itself was originally used as a windmill.

The lantern and fittings cost £250 7s 6d, including the adaptation of an ‘earlier tower’. The north-east door is flanked by small windows, and the two floors above also have small windows, but the top does not. The conical roof is slated and has a flag pole. The present lantern window is about 2m (6 ft 6ins) by 0.61 m (2 ft). The optic, silver plated reflector and Fresnel lens were used into the 1970s and are dated 1861. The lantern was originally lit by six Argand lamps with reflectors.

A smaller, conical tower, with a domed top, can be found to the north-east, and may be an earlier structure. The walls are 2.03m (6 ft 8ins) in radius and 0.91 m (3 ft) thick with a door to the north-west and shows signs of cracking to the rubble-filled walls on the west.

Both towers do not show on the chart of Lewis Morris, of 1800, but do appear on the Ordnance Survey 1818-1823 2 inches/mile map and both probably originated as unlit markers.

The cottages nearby have been used as craft workshops, and the local community here once serviced pilot-boats and life boats.

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