Officers from North Wales Police are to travel to Crete to help in the search for missing 73-year-old Arthur Jones.
Mr Jones, from Denbigh, was staying in the city of Chania, but has not been seen since June 19.
"We are pleased to be able to provide support to the Greek authorities and will be sending officers who have vast experience in dealing with missing person inquiries and searches" said Deputy Chief Constable Gareth Pritchard.
Earlier this week the force appealing for information from anyone who might have seen Mr Jones while on holiday or who had travelled to the island between June 17 and 24th.
More top news
We visit two communities in the South Wales Valleys which are preparing to mark the commemorations
Plaid Cymru says there'll be no savings from Brexit and calls on the UK government to borrow to meet the Leave campaign's promises to Wales
Jamie Clark, from Carmarthenshire, said officers restrained him in the cell - but he put his hand out as they tried to close the door.