The sand importation is part of Conwy County Borough Council’s Waterfront project, which is providing sea defences and improvements in Colwyn Bay, funded by the Welsh Government and European Regional Development Fund.
It will take place 24 hours a day, seven days a week and should last for a period of up to four weeks, depending on the weather.
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Fire crews have been responding to reports of flash flooding in Carmarthenshire. Some homes have been affected.
Medication designed for animals was taken from the building in Abertillery on Thursday night.
More than a thousand riders will be taking part in a series of events in and around the town.