Search and recovery operations along the north west coastline are still ongoing.
This operation has seen members of the Coast Guard, the RNLI, local fishermen and independent rescue services, from all around Ireland offering their help.
They continue their search for missing winchman Ciaran Smith and winch operator Paul Ormsby. Captains Dara Fitzpatrick and Mark Duffy have been recovered and laid to rest.
We spoke to some of the people who are working as part of the continuing recovery effort to find out what goes in to a search of this magnitude.