Cemlyn and Llanrhwydrus circular walk

Walking trail

A truly atmospheric three-mile walk. If you time it right you'll see the sun setting into the Irish Sea.

There's ancient pre-history here plus memories of more recent human achievement and memorials of loss. Please note that Bryn Aber car park is liable to flooding. Please check high tide times before your visit.

A vsitor taking a walk along the bay at Cemlyn, Anglesey


Map route for Cemlyn and Llanrhwydrus circular walk


Bryn Aber car park, grid ref: SH329936


From the car park, walk out past the monument towards the headland.


Turn left through the kissing gate and either follow the coastal path or walk along the beach. You might see grey seals hauled up on Craig yr Iwrch, the rocky island on your right.


Enjoy the wonderful sea views as you walk along the coast. If you have time, it's well worth making a short detour to Llanrhwydrus Church. This lovely little building is one of Anglesey's oldest spiritual sites and one of very few pre-reformation churches on the island.

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When you reach the little bay of Henborth be sure to look for the Henborth drumlin - a rock formation that looks like a beached whale. Turn left through the kissing gate.

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Walk on through the kissing gate towards Hen Felin (Old Mill) and cross the bridge. Turn left onto the lane and walk back towards Cemlyn Bay and the National Nature Reserve sheltered by the shingle ridge.


After you pass Fronddu, turn left up the lane. This takes you past the Cemlyn lagoon, established in the 1930s by Captain Vivian Hewitt of Bryn Aber.

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Follow the lane over the causeway and back to the car park. Look out across the lagoon: in summer more than 1,000 terns nest on the islands in the lagoon, while in winter it provides a sheltered haven for many varieties of water fowl.


Bryn Aber car park, grid ref: SH329936

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Cemlyn and Llanrhwydrus circular walk


Undulating, kissing gates, beach or coastal path. Return on country lane.

Dogs on leads welcome.

Cemlyn and Llanrhwydrus circular walk

Contact us

Cemlyn and Llanrhwydrus circular walk

How to get here

Cemlyn, Anglesey
By train

Station at Holyhead 12 miles (19km), see Traveline-Cymru

By road

A5025 from Valley, follow sign to Cemlyn National Nature Reserve in Tregele (opposite Douglas Inn). On approach to Cemlyn NNR take second turning to the right then turn right again, after farm buildings, past Bryn Aber walled garden to the car park. Post code LL67 0DY.

By bus

Amlwch to Holyhead route stops at Tregele (45 minute walk), see Traveline-Cymru

By bicycle

National Cycle Network Route 566 goes close by.

Cemlyn and Llanrhwydrus circular walk

Facilities and access

  • Shop, parking, tea-room and toilets available at Plas Newydd House (LL61 6DQ)
  • Dogs on leads welcome