Circular walk from Aberdaron via Mynydd Mawr and Porth Oer.

Aberdaron via Mynydd Mawr and Porth Oer

Aberdaron’s on the Llyn Peninsula in North Wales is a picturesque village, with its whitewashed cottages and wide sandy beach. Park at St Hywyn’s church in Aberdaron (Sat Nav LL53 8BE) – a 12th-century double naved building that overlooks the beach. This is a big day walk of about 10miles which will take a good 4 to 5 hours. Good footwear, wind-proofs and snacks are good to carry along with OS Explorer 253 and a compass.

From Aberdaron at low tide you can go along the beach towards Porth Simdde keeping the sea to your left. At high tide, take the road instead. Follow the coastal path that leads southwards to Porth Meudwy  from where the boats go to Bardsey.  Continue along the coast path round the peninsula towards the headland of Braich y Pwll, the Land’s End of North Wales, and the prominent hill of Mynydd Mawr (Big Mountain).

The cliffs are home to a variety of seabirds, among them razorbills, guillemots and gulls. Look out for the Chough – the emblem of the Llyn Area of Outstanding Natural Beauty – which you can recognize from its harsh call, red legs and beak. The path doesn’t stick right to the coast all the time, but it runs near enough.

It’s a modest climb up to the old coastguard station at the summit of Mynydd Mawr, a splendid viewpoint which overlooks the whole of the peninsula and Snowdonia’s mountains in the distance. The concrete platform nearby was the site of a wartime installation.

Mynydd Anelog to the north is your next target. Though the OS map shows the coastal path heading inland to the road from Mynydd Mawr, you can now follow a path across the heath closer to the coast. There are some splendid views back along this stretch.

Mynydd Anelog, 192m is another excellent viewpoint. Heading north, the path keeps closer to the cliff edge, passing the promontories of Dinas Fawr and Dinas Bâch to reach Porth Oer. This is commonly known as Whistling Sands because the sands are supposed to whistle underfoot due to the texture of the grains.

From Porth Oer follow the access lane inland to the road and turn R. At a L hand bend about 300m along you can either turn left along the lane and follow the inland route marked on the OS map back to Aberdaron, or stay on the road keeping to the cycle route.

If you’d like to join me for some mountain training in the summer or winter please get in touch on 07534 387152 or use the links below,

Aberdaron via Mynydd Mawr and Porth Oer
Aberdaron via Mynydd Mawr and Porth Oer

Published by Diving & Mountaineering Instructor

I am a passionate adventurer, loving being in the mountains walking, climbing, scrambling as much as I love being under the water exploring shipwrecks, mines and caverns, or in search of treasure in the depths. I am a Mountain Instructor (MIA), a Winter Mountain Leader, a Scuba Diving Instructor (BSAC, TDI, SDI, IANTD), a skipper for CAT3 waters up to 25mtr and as I’ve built this experience over time, I have written about it and published those works. In addition I am a Chartered Manager with CILT, a member of the institute of Engineering & Technology, a Fellow of the Institute of Leadership & Management and a Fellow of the Royal Geographical Society. I help people fulfill their goals in the Mountains (Worldwide), Scuba Diving (Worldwide), provide location support worldwide for the media and assist with technical and safety support whenever requested. For a full picture of me please check out my linkedin profile -

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