Cemlyn Bay, Hen Borth and Llanrhwydrys

The walk starts from the car park at the Cemlyn Nature Reserve, on Anglesey's north coast. It follows the Isle of Anglesey Coastal Path along Esgair Cemlyn, the shingle ridge that holds back the lagoon, to the east end of the bay, then takes the waymarked Cemlyn and Llanrhwydrus circular walk back west along the coast to the little cove of Hen Borth, with its drumlin of rock. A lane and footpaths lead inland past St Rhwydrus's church at Llanrhwydrys, and the road beside the lagoon brings you back to the car park.

It is 7.0 km with 81 m of ascent; allow about 2 hours. The grade is Easy.

Terns nest on islands in the lagoon from late April to August: walk on the seaward side of the ridge, follow the wardens and fencing, and keep dogs on a lead. The ridge is steep shingle, hard going, and the car parks at the lagoon can flood at high tides. Parts of the way use a quiet road with no pavement.

The reserve is open at all times, has no entry fee, and its car park shows no fee in OpenStreetMap. There is no café or toilet on the route.

Route drawn by Global Adventurer along OpenStreetMap paths (© OpenStreetMap contributors, ODbL), with figures worked out from it. Check the forecast and the ground on the day: paths change.