On Christmas Eve 2022, Aaron Matthews, 43, entered the water near Lottin Point on New Zealand’s East Cape to gather seafood for his family. Conditions were calm and visibility was good. After surfacing, Matthews was seen gasping and calling for help before slipping beneath the surface. His body was later found in nine metres of water, entangled in seaweed, with his mask around his neck, according to RNZ.
The Coroner’s Finding
In a report released in late November 2025, Coroner Katherine Greig ruled the death a drowning and concluded it was preventable. The investigation found that Matthews’ death resulted from avoidable equipment and procedural errors rather than a sudden medical emergency. As reported by the NZ Herald, the coroner described the case as “a tragedy that need not have happened.”
Equipment and Safety Failures
An analysis by the Police National Dive Squad revealed several preventable factors. Matthews’ scuba cylinder had been fitted incorrectly, with the valve facing backwards, forcing the regulator hoses into an awkward position that limited head movement. Test dives later showed that turning the head sharply could have pulled the regulator from the mouth, making it difficult to breathe normally.
The weight belt Matthews wore was also too heavy. When distress began at the surface, he did not release it, which likely prevented him from maintaining buoyancy. Investigators found his mask removed – a common panic reaction but one that increases drowning risk when breathing becomes difficult.
The coroner also noted that no formal certification record could be found. Although Matthews’ fiancée believed he had completed a dive course in 2020, no official record existed. The report concluded that a lack of verified training and refresher practice may have impaired his ability to respond effectively in an emergency.
Lessons for the Diving Community
This tragedy highlights how quickly small oversights can escalate underwater. Even calm seas and short dives can turn fatal when procedures are ignored. Organisations such as Divers Alert Network and PADI consistently stress the importance of basic protocols: correct gear assembly, thorough pre-dive checks, proper weighting, current certification, and avoiding solo dives wherever possible.
Every diver, regardless of experience, should revisit these fundamentals regularly. Correctly oriented cylinders, clear hose routing, well-fitted weight systems, and immediate access to a buddy or surface support are non-negotiable safeguards.
A Family’s Loss and a Community Reminder
Friends and family described Matthews as careful and cautious. His dive that morning was intended to gather shellfish for Christmas dinner – a simple, familiar task that turned into heartbreak. The coroner’s verdict carries a clear message: even confident, capable divers are vulnerable when safety routines slip.
For all divers, this case is a reminder that the ocean demands respect. Training, preparation, and calm decision-making save lives. Every dive, however routine, deserves the same care and discipline as the first.
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