The search in west Cork for 20-year-old Barry Davis-Ryan, who has been missing since Tuesday, will resume tomorrow.
Deteriorating weather conditions meant that divers had to finish their search early today.
The Coast Guard rib boat also returned to shore early, while a shoreline search continued until this evening.
The bodies of Mr Davis-Ryan's 20-year-old girlfriend, Niamh O'Connor, and his father, Barry Ryan, 51, were recovered from the sea on Tuesday.
The Ryan family visited the search site just outside Baltimore yesterday. They spent about half an hour there and expressed their appreciation of the search teams.
It is understood a group of people were walking close to the Beacon on Tuesday when one of them fell into the sea and two others tried to rescue them, before all three got into difficulty.
The alarm was raised at 6.40pm by a fourth person who remained on the shoreline during the incident.
Barry Ryan, a son of Penneys founder Arthur Ryan, was a senior executive with the retail clothing company.
Ms O'Connor from Glanmire worked at a Penneys store in Cork city.
