Cemlyn Nature Reserve

Cemlyn Nature Reserve_Lin Cummins

An outstanding birdwatching site and the "jewel in the crown" of Anglesey's Area of Outstanding Natural Beauty


Sign posted from the A5025 near Tregele
Isle of Anglesey
LL67 0EA

OS Map Reference

A static map of Cemlyn

Know before you go

25 hectares

Entry fee


Parking information

A car park at each end of the shingle ridge. The western car park may flood. at high tide

Grazing animals


Walking trails

Walking the full length of the shingle ridge can be very strenuous and the steep shingle makes it unsuitable for prams and wheelchairs. Between late April and August visitors are asked to walk on the seaward side of the ridge to decrease disturbance to the tern colony. Alternatively easier walks are available around the adjacent headland.


Minor roads lead to car parks at the eastern and western end of the ridge. From here it is possible to walk along the shingle ridge; during the summer months visitors are directed to the seaward side of the ridge. The lagoon is visible from a minor road that skirts around the southern shore.


On a lead

When to visit

Opening times

Open at all times

Best time to visit

Summer for breeding terns; winter for visiting wildlfowl and waders

About the reserve

Cemlyn is one of NWWT's star reserves and regarded by the Anglesey County Council as the "jewel in the crown" of its Area of Outstanding Natural Beauty. It is valued for both its scenic qualities and its unique range of wildlife and is as popular with general visitors as it is with birdwatchers and naturalists. It includes a large lagoon, separated from the sea by a spectacular, naturally created shingle ridge. During the summer months it is home to one of the most important tern colonies in Wales, including Sandwich terns. Cemlyn offers some great winter bird watching opportunities but if you are heading out there bear in mind that approach roads may be subject to road closures. This is part of the plans to improve Nanner Road (the one that goes past the Jam Factory) and is linked to proposals for Wylfa Newydd Power Station.  

Contact us

North Wales Wildlife Trust- Chris Wynne
Contact number: 01248 351541

Environmental designation

Area of Outstanding Beauty (AONB)
Site of Special Scientific Interest (SSSI)
Special Areas of Conservation (SAC)
Special Protection Areas (SPA)

Cemlyn Nature Reserve map and guide