Llansteffan Beach (Llanstephan / Tywi Estuary)

This lovely beach is situated on the western side of the Tywi / Towy Estuary. I say it is a beach but apparently the tourist board won’t call it one and insist it is referred to as an estuary. Well, if it looks like beach, feels like a beach and smells like one, then in my books it is a beach!

The sand here is fine and golden, becoming much firmer towards the sea - ideal for sandcastles. Llansteffan beach’s main stretch is backed by a flat grassy area with picnic benches and children’s play park. Along with plenty of facilities close at hand, Llanstephan is a great family beach.

The only drawback with this beach is that swimming is considered dangerous, particularly along the stretch of beach further up the estuary. It is also worth pointing out that you should not attempt to cross the estuary, even at low tide.

Llansteffan beach is overlooked to the west by the ruins of the Norman Llansteffan Castle. You can climb the one remaining tower from which the views of the beach and estuary are great.

Also known as:

Llanstephan / Tywi Estuary

Type of beach


Lifeguard service


Dogs friendly beach?

There is a dog ban in force from 1st May to 30th September at the northern end of the beach

Carmarthenshire dog friendly beaches »


  • Slipway

Nearest town



SA33 5LW

OS grid ref.

SN 3550 1063

Water quality

Water quality star rating

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