The missing man’s niece, Lovina Fa’ukafa, said the family “were still in shock” over the capsize.
“My brother … went with my uncle and he made it to the shore, but my uncle didn’t.”
Search and rescue efforts continued on Thursday, a police spokesperson confirmed, with the police national dive squad joining in.
“Further aerial searches will be conducted by the police Eagle helicopter at low tide.”
A rāhui had been put in place by local iwi, covering much of the harbour for at least seven days.
Coastguard were not participating in the ongoing search on Thursday, a spokesperson confirmed, but were available if needed.