A flood alert has been issued for the Carmarthenshire coast to the east of Llanelli, between Pendine and Hendy.
The alert states that the greatest impact will be today, Tuesday (April 17) from 8am until 8pm.
Natural Resources Wales said: "Over the next few days high tides are expected to coincide with tidal surge and moderate to large offshore waves.
The tide on Tuesday morning is expected to give the greatest impacts. Care should be taken at exposed locations around the coast...