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Traeth y Garreg Ddu / Black Rock Sands

Award Winning and Family Friendly Beaches

Here’s one revealing fact: it’s just 10 miles from the top of Snowdon to the sea. Here’s another: our coastline stretches for around 200 miles. So when we call ourselves Snowdonia Mountains and Coast, the watery, sandy bit is just as important as all those peaks, forests and moors.

We have over 35 beaches. Here’s a quick run-down, from north to south, of some of our coastal highlights:

• Penmaenmawr – long, sandy beach with sailing club and attractive promenade

• Llanfairfechan – fun, family-friendly seaside village with large sandy beach. The nearby Traeth Lafan Nature Reserve is a great place for birdwatching

• Dinas Dinlle, near Caernarfon – enormous beach with widescreen views to match. Great for walkers, windsurfers and power kiters 


• Nefyn – two miles of sweeping sands, scooped out of the coastline in perfect crescents. The impossibly pretty National Trust village of Porthdinllaen is perfect too 

• Porth Oer, near Aberdaron – a true one-of-a-kind, with ‘Whistling Sands’ that really do squeak underfoot

Porth Oer - Whistling Sands

• Aberdaron – broad sandy beach on Llŷn’s ‘land’s end’, sheltered between two spectacular headlands

• Abersoch – one of our most popular resorts. A big hit with families, watersports enthusiasts, shoppers and people watchers

• Pwllheli South Beach (Marian-y- De) – a three-mile curve of sand and shingle, backed by rolling dunes

• Morfa Bychan (Black Rock Sands) – this big beach’s golden sands, rock pools and dunes make it a popular spot for families

• Harlech – untouched sandy beach, backed by dunes and theatrically overlooked by Harlech Castle

• Shell Island, Llanbedr – sand, dunes and, of course, shells

• Barmouth/Abermaw – bustling resort town that boasts a huge sandy beach, plus views over the mountains and Mawddach Estuary

Trawth Abermaw - Barmouth Beach

• Tywyn – popular surfing beach with almost five miles of sand, and also a good place to spot dolphins and porpoises

• Aberdyfi – dramatically located at the mouth of the Dyfi Estuary, this big sandy beach is great for windsurfing and wildlife spotting 


For information on slipways, boat launching and marinas contact the Maritime Unit on 01758 704066. For harbours and maritime information in the Conwy area call 01492 596253.   

Walking your dog on our beaches

There are over 35 beaches along our 200 miles of coastline, which includes the Llŷn Peninsula and Cambrian Coast. Dogs are allowed access to walk along the majority of them. Sections of certain beaches have Dog Exclusion Zones to manage their use and keep them clean and safe. For the latest information please contact 01758 704066 or view the beach maps on Gwynedd Council's website.

610 Traeth Llanbedrog Beach (Turtle Photography)

Useful Contact Numbers

Gwynedd Council Contact Centre
01766 771000

Aberdyfi 01654 767626
Barmouth 01341 280671
Conwy 01492 596253
Porthmadog 01766 512927
Pwllheli 01758 704081 

Caernarfon, Victoria Dock
01286 672118
Hafan, Pwllheli
01758 701219

Maritime Service
01758 704066

The National Trust
01492 860123

Natural Resources Wales
0300 0653000

Surf Report Information

Tide Times

Award Winning Beaches

Blue Flag Beaches

Aberdaron, Abersoch, Barmouth, Black Rock Sands (Morfa Bychan), Criccieth (Promenade), Dinas Dinlle, Llanfaifechan, Penmaenmawr, Pwllheli (Marian y De) and Tywyn.


Blue Flag

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Economy and Community Department, Gwynedd Council, Caernarfon LL55 1SH | Copyright © Gwynedd Council 2019 | Terms and Conditions | Privacy Policy and Cookies | [email protected] | 01286 679686