They've searched for almost three weeks since Kieran McAree went missing in Lough Erne.
These are scenes from the touching community effort that has gone into finding the 23-year-old to return him to his distraught family.
Volunteers from both sides of the border have come together - even on Christmas Day - to join the search.
And even more people are turning up with hot drinks and food to sustain the effort. Today marks the 20th day since Kieran - from just across the Tyrone border in Emyvale, Co Monaghan - was last seen in the Henry Street area of Enniskillen.
Kieran was spotted entering Lough Erne after abandoning his Volkswagen Golf car. Some of his clothing was later recovered at the scene.
His parents Martin and Geraldine, with brother Damien and sister Aisling, have maintained a daily vigil at the lough. PSNI constable Gavin Huey said he had never seen a community effort like it.
"Even today was a large turnout considering that everyone is back at school and work," he told the Belfast Telegraph. "We have private boats, walkers, kayakers and obviously the police boat out. We also had a dive team from Co Meath came out to help, helpers are coming from all over Ireland, I have never seen a community effort like this, never seen as large an effort. A local shopkeeper has given up his cafe for free use for the family, friends and helpers. Other local shops have been delivering sandwiches and food. People from all walks of life. It is incredible to see."
Meanwhile, the search is also ongoing for a woman in her 30s who went missing in Belfast Lough. The woman was spotted going into the water at Bangor Harbour. A PSNI spokesman confirmed she was still missing.