It has been 10 days since the 20 year old was swept to sea off the Baltimore coast.
The bodies of his girlfriend 20-year-old Niamh O'Connor and his father Barry Ryan senior were recovered on June 30th.
Coordinator for the West Cork Underwater Search and Rescue Unit, John Kearney says divers have come from all over to help in the search.
“They're coming from Dundalk, Roscommon, Mayo…Kilkenny came down – they're all over the country” he said.
“We've obviously a big Cork and Kerry contingent” he added.
