The 25-year-old woman who died after falling from a charter boat in Waitematā Harbour was a young chef with extensive family in South Auckland now grieving together.
A family member confirmed to the Weekend Herald that Danielle Tamarua was the woman who died after she was found floating near a luxury charter vessel about 5.15pm on Thursday.
A witness to the accident on a Zefiro Charters Ltd boat off Rangitoto Island said two men stripped off and jumped in the water in a desperate attempt to save Tamarua.
Police said an investigation involving Maritime NZ was under way into the events leading up to Tamarua's death. The boat's "shocked and devastated" owners have begun their own independent investigation.
The chartered vessel had been carrying about 30 passengers.
Te Atatu builder Dylan Chote was on a Fullers360 ferry heading back to Auckland that came across the unfolding emergency and described chaotic scenes as two swimmers with lifesaving rings tried to reach a woman floating motionless.
Chote said he could hear people yelling and in obvious distress.
"When the ferry came to a halt we started looking over and could see a person in the water and other people swimming after the person.
Family and friends shared their grief on social media.
"Rest in love Danny. You are such a beautiful person. Thank you for being an awesome friend," one person posted.
Another said: "Soooooo sooo shocked!! I pray you find peace in your rest girl. Beautiful soul you are. Love and condolences to Junior, your kids and your families."
"Fully out of words my cousin," another said alongside several crying emojis.
Zefiro Charters' owners, Lawrence Knight and Ben Mostert, said: "We are shocked and devastated with the events that unfolded yesterday afternoon.
"Our hearts go out to the family and friends of the deceased.
"We are working with police and Maritime New Zealand who have our full co-operation, and will be conducting our own independent investigation to determine what happened.
"We are unable to make any further statements at this time while the investigation is under way."
Chote said he approached the Waiheke ferry captain in desperation three times to see if they could intervene with equipment or take people familiar with first aid to her side.
He was told everything was in hand and ordered out of the wheelhouse.
He was also handed a two-year trespass order.
"My biggest regret is not jumping in and going over there and giving her CPR," said Chote.
Fullers360 general manager Alistair Thomson said a 24-month trespass notice had been issued to a passenger on the ferry after "demonstrating threatening behaviour to our crew".
"The individual entered the wheelhouse on three occasions and made repetitive abusive comments to our crew, who at the time, were following police instructions to stand by and render assistance when requested," Thomson said.
"The individual's behaviour resulted in some crew locking themselves in the wheelhouse and the police were notified.
"We acknowledge that this was a unique and highly stressful situation for everyone who witnessed yesterday's tragic events. However, the health and safety of our passengers and crew remains our utmost priority."
Chote said things got heated only during his third visit to the wheelhouse and that his threats were to get police involved, not personal threats to staff.
Police are continuing to make inquiries on behalf of the Coroner.