The RNLI says the man and boy were were swept out to sea off Aberffraw, on the west coast of Anglesey.
The man was able to make his way back to shore, but the child is still missing.
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Welsh employers are being urged to offer more work placements to young people after a study found experience to be the most valued asset.
A bright start, especially for eastern Wales, before cloud thickens from the west. Rain and strong winds will then spread eastwards.
The Welsh Conservatives will officially launch their General Election Campaign today in Gower.