Dog-Friendly Beaches in Anglesey
Written by UK Hidden Gems Editorial
Updated 5 August 2026
The dog-friendly beaches in Anglesey are Porth Tywyn Mawr, Porth Padrig, Traeth Bach, Porth Diana Beach, Traeth Penial, Porth Cwyfan, Traeth Coch Pentraeth and Porth y Post.
Anglesey wraps its coast path right around the island, and that makes it a fine place to walk a dog beside the sea. The north coast holds some of its most characterful shores: the secluded cove of Porth Padrig below Llanbadrig church, and the sheltered sand of Traeth Bach tucked beside Cemaes harbour.
Over on the north-west, near Llanfaethlu, Porth Tywyn Mawr spreads out half a mile of golden sand with plenty of open room. Head to the west coast and you will find the quiet, undeveloped cove of Traeth Penial and the church-in-the-sea setting of Porth Cwyfan near Aberffraw.
Holy Island, off the western tip, adds the soft sand of Porth Diana at Trearddur Bay and the rocky nook of Porth y Post just to the north. Round on the east coast, the huge tidal flats of Red Wharf Bay at Pentraeth open up miles of sand at low water.
Whether you want a long stride or a gentle potter, there is something here for every walk. Here are eight dog-friendly beaches to seek out in Anglesey.
Porth Tywyn Mawr
Photo: Mat Fascione via Geograph.org.uk
Walk the sands at Porth Tywyn Mawr Over on the north-west coast near Llanfaethlu, Porth Tywyn Mawr stretches roughly half a mile of golden sand backed by low dunes, with fields inland and a headland rising to the north. A caravan and leisure park sits at the southern end, which is why locals often call it Sandy Beach, and its shop stays open to day visitors.
Free parking and the open water make it a lively spot for sailing, kayaking, windsurfing and swimming, though there is no lifeguard. It sits on the Anglesey coast path, leaving plenty of open room for a dog to stretch its legs.
Porth Padrig
Photo: Gordon Hatton via Geograph.org.uk
Discover the White Lady at Porth Padrig Tucked below the church at Llanbadrig, just west of Cemaes on the north coast, Porth Padrig is a small, secluded cove of sand and rock hemmed in by cliffs. Its landmark is a tall white quartzite sea stack standing out in the water, known as the White Lady.
Caves open along the shore, one tied by tradition to Saint Patrick, said to have sheltered here after being shipwrecked on a nearby island, the most northerly point of Wales. You reach it on foot along the Anglesey coast path, and it suits rock-pooling and fishing, with no facilities at the shore.
Traeth Bach
Photo: Eric Jones via Geograph.org.uk
Relax at Traeth Bach in Cemaes The smaller of the two beaches at Cemaes, Traeth Bach is a sheltered patch of sand and rock on the west side of the little harbour. As the tide falls, rock pools open up, and the sand shrinks away again at high water.
Access is easy down a slipway with parking close by, and the village shops, pubs and harbour sit right beside it, on the Anglesey Coast Path. Calm and sheltered rather than wild or remote, it makes a relaxed base for a stroll with the dog before ducking into the village for a bite.
Porth Diana Beach
Photo: DS Pugh via Geograph.org.uk
Head to Porth Diana at Trearddur Bay On the south side of Trearddur Bay, over on Holy Island, Porth Diana is a small cove of soft sand and one of the larger among the bay's little inlets. The water tends to stay clear and calm, with boats and yachts moored out at the mouth and a sailing club that has been going here since 1919.
It is used for swimming, snorkelling, diving and sailing, and lies just around the rocks from Porth Castell. Reached from Ravenspoint Road with limited parking and a link to the Anglesey Coast Path, it is an easy, sheltered spot to bring the dog.
Traeth Penial
Photo: Jeff Buck via Geograph.org.uk
Find the quiet cove of Traeth Penial Traeth Penial lies on the west coast, in the community of Llanfwrog near Llanfachraeth. It is one of a string of small, undeveloped coves along this stretch of shore, sitting close to its neighbours Porth Trwyn and Porth Trefadog.
There are no facilities here, and you reach it on foot from the Anglesey coastal path. That quiet, out-of-the-way feel makes it the sort of undisturbed cove where a dog can potter about while you take in the sea air, well away from the busier resort beaches, with only the sound of the water for company.
Porth Cwyfan
Photo: Jeff Buck via Geograph.org.uk
Visit the church in the sea at Porth Cwyfan Near Aberffraw on the west coast, Porth Cwyfan is a shallow bay best known for the little church that sits just offshore on a tiny tidal island called Cribinau. St Cwyfan's, often called the church in the sea, stands within a circular stone sea wall, reached on foot across a causeway when the tide is out and cut off when it comes in.
Parts of the building go back to the twelfth century, and the sea wall was raised in the 1890s to save it as the sea gnawed at the land. A favourite with photographers and walkers exploring the shore.
Traeth Coch Pentraeth
Photo: Eric Jones via Geograph.org.uk
Explore Red Wharf Bay at Pentraeth Known in English as Red Wharf Bay, Traeth Coch is a vast tidal bay on the east coast near Pentraeth, where something like ten square miles of sand are uncovered at low tide. The wide flats draw walkers and birdwatchers, alive with oystercatchers, curlews and, in winter, geese, and cockles are still gathered here.
Do keep an eye on the water, as the incoming tide sweeps in fast over the near-flat sand. Two pubs sit on the shore, and the coast path runs around the bay toward Benllech and Penmon, giving miles of open ground for a good long walk with the dog.
Porth y Post
Photo: John Firth via Geograph.org.uk
Wander to the rocky cove of Porth y Post Just north of Trearddur Bay on Holy Island, Porth y Post is a small, rocky cove reached from the coast road or the Wales Coast Path. This is a quiet, minor cove rather than a serviced beach, mostly rock with a small patch of sand showing at low tide and low cliffs behind.
There are no facilities, so it suits a quiet walk, a bit of rock-pooling and some sea views rather than a full day on the sand. Its low-key, unhurried feel makes it a peaceful place to wander with the dog and watch the water.
FAQs
Which Anglesey beaches are easiest to reach with a dog?
Several sit right by parking and a village, which helps. Porth Tywyn Mawr near Llanfaethlu has free parking, and Traeth Bach beside Cemaes harbour has easy access down a slipway with parking close by, both on the Anglesey coast path.
Are there quieter beaches in Anglesey for a peaceful walk?
Yes. Traeth Penial near Llanfwrog and Porth y Post on Holy Island are quiet, undeveloped coves with no facilities, ideal if you would rather avoid the busier Anglesey resort beaches.
What should I watch out for at Red Wharf Bay?
The incoming tide sweeps in quickly over the near-flat sand at Red Wharf Bay near Pentraeth, so keep an eye on the water and the time when you are out on the wide tidal flats.
Conclusion
From the White Lady sea stack at Porth Padrig to the vast sands of Red Wharf Bay, Anglesey packs a lot of coastline into one island, and much of it is easy to reach on the coast path. Some of these beaches are lively spots with parking and a village close by, like Porth Tywyn Mawr and Traeth Bach; others, such as Traeth Penial and Porth y Post, are quiet corners with no facilities where you simply enjoy the sea air.
It pays to check the tide before you set off, since places like Red Wharf Bay change fast as the water comes in. Pack water, a lead and a sense of adventure, and pick the shore that suits your day.
Whether you fancy a long walk or a short stroll by the water, these are the dog-friendly beaches to seek out in Anglesey.
