The body of Barry Davis Ryan (20), who was swept off rocks near Baltimore in west Cork on June 30, has been found.
Dozens of divers had been involved in an intensive effort to find the missing man, whose father and girlfriend also died in the tragedy.
It is thought they were hit by a freak wave.
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The bodies of Niamh O'Connor (20) and Barry Ryan Senior were both recovered on June 30.
One of the dive teams found the body just before lunchtime, and it has since been brought ashore to Baltimore Pier.