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Porth Trwyn Beach

beach info
weather & tides
Porth Trwyn Beach - Anglesey

© Bob Shires and licensed for reuse under this Creative Commons Licence

The quiet beach of Porth Trwyn near Llanfaethlu is on Anglesey's west coast a few miles north of Holyhead. There is very little in the way of development here with just a few cottages overlooking the dunes to the back of the beach.

At high tide the only remaining beach at Porth Trwyn is band of pebbles. However, as the tide drops away a good-sized expanse of sand is exposed. There are also some rocky areas on the beach which provide plenty of opportunities for rockpooling.

There aren't much in the way of facilities at Porth Trwyn. For toilets and a shop you will need to go to the village of Llanfaethlu just under a mile away.

Type of beach


Lifeguard service


Dogs friendly beach?

Dogs allowed

Anglesey dog friendly beaches »


  • Good fishing
  • Rock pooling


Nearest town



LL65 4HD

OS grid ref.

SH 2958 8778

Water quality

Water quality star rating


Green Coast AwardMarine Conservation Society Recommended