Cable Bay (Porth Trecastell)

This lovely little sandy beach is set in a sheltered inlet and is largely undeveloped. Nevertheless it is a popular spot, drawing in plenty of locals and visitors alike during the summer months.

Backed by gently sloping dunes and with gently sloping sand Cable Bay (Porth Trecastle) is an ideal family beach. There are a few rockpools to explore at either end too.

Of interest to those with archaeological tendencies is Barclodiad y Gawres burial chamber on the northern headland. Dating back to the Stone Age this large underground chamber is most impressive.

There is fair-sized pay-and-display car park right behind the beach.

Also known as:

Porth Trecastell

Type of beach


Lifeguard service


Dogs friendly beach?

Dogs allowed

Dogs allowed all year

Anglesey dog friendly beaches »


  • Kayaking/canoeing
  • Rock pooling
  • Surfing
  • Wind surfing


  • Town centre nearby

Nearest town



LL64 5JR

OS grid ref.

SH 3333 7073

Water quality

Water quality star rating


Marine Conservation Society Recommended

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Cable Bay Reviews

Lovely little bay

Aug 08th 2021

But please keep its Welsh name by using that first. When in Wales…

Oct 08th 2020

Beautiful little beach. Dog had a great time and stunning coastal walk. Can’t wait to go back.

What did we get wrong?