Perth Father Remembered as Devoted Dad and Ocean Lover After Shark Encounter Off Rottnest Island

Steven Mattaboni lived for the water. The 38-year-old Perth surveyor, known affectionately to friends as “Mattas,” balanced a busy professional life with a deep passion for the ocean that defined much of his identity. On a clear Saturday morning in May 2026, that connection led him to Horseshoe Reef, about one kilometre off Rottnest Island, for what should have been another rewarding spearfishing session with close mates. Instead, it became the site of a sudden and tragic encounter that claimed his life.

Mattaboni was participating in a small-scale friendly competition among friends when the incident unfolded shortly before 10 a.m. on May 16. Reports indicate he was bitten on the lower legs by a large great white shark, estimated at around four metres in length. His companions, who were nearby in the water and on their boat, acted swiftly to pull him aboard and raced toward Geordie Bay jetty. There, paramedics and police performed CPR for more than 30 minutes, but despite their determined efforts, Mattaboni could not be revived.

His wife, Shirene Mattaboni, a clinical nurse specialist, released a heartfelt statement the following day. “Our hearts are irrevocably broken by the loss of Steven,” she wrote. She described him as a devoted father to their two young daughters — one a toddler and the other just four months old — and a man who “lived and breathed the ocean.” According to Shirene, Steven was “always in tune with the sea,” fiercely loyal, endlessly generous, and the kind of person who would give you the shirt off his back. Colleagues and friends echoed these sentiments, painting a picture of a true gentleman who cherished family above all.

Rottnest Island, often called “Rotto” by locals, is a beloved holiday destination just off the coast of Perth, Western Australia. Known for its pristine white beaches, crystal-clear waters, and vibrant marine life, the island draws thousands of visitors each year for activities ranging from snorkeling and surfing to fishing and relaxed getaways. Horseshoe Reef, where the encounter occurred, is a popular spot for experienced spearfishers drawn to its reefs and the opportunity to connect with the underwater world.

Spearfishing itself carries inherent risks, yet enthusiasts like Mattaboni approach it with respect and preparation. Those who knew him described an experienced and responsible diver who understood the marine environment. He had spent countless hours in these waters, appreciating the balance between human adventure and the power of nature. In the days following the tragedy, tributes highlighted how his passion never overshadowed his caution or love for his family.

The incident marks a somber moment for Western Australia, which has seen occasional shark encounters in its coastal waters. Authorities from the Department of Primary Industries and Regional Development confirmed the involvement of a great white shark. Surf Life Saving WA also reported a five-metre white shark sighted in the vicinity shortly afterward, prompting increased vigilance. Beaches on the island remained open, but officials urged swimmers and ocean users to exercise heightened awareness.

Friends who witnessed the event described the moments as deeply distressing. They worked together under pressure to assist their mate, demonstrating the strong bonds formed through shared ocean experiences. Emergency services responded promptly, yet the remote location added challenges to the rescue effort. Police later confirmed they would prepare a report for the coroner as part of standard procedures.

Mattaboni’s passing has resonated far beyond his immediate circle. In Perth’s northern suburbs, where he lived, neighbors recalled a family man who was often seen with his daughters or preparing for weekend outings. His work as a surveyor allowed him the flexibility to pursue his outdoor interests, and he frequently spoke about teaching his children to respect and enjoy the ocean responsibly.

Broader discussions have emerged around ocean safety in popular recreational areas. Australia maintains various shark mitigation strategies, including drum lines, aerial patrols, and public education campaigns. This case has prompted renewed conversations about balancing access to natural wonders with personal responsibility. Experts note that fatal encounters remain statistically rare, yet each one prompts reflection on how humans and marine life coexist.

Shirene Mattaboni’s tribute captured the essence of her husband’s character. She emphasized his generosity and loyalty, qualities that extended to his friendships and community involvement. “The world has lost a one-of-a-kind gentleman,” her words conveyed a profound sense of loss shared by many. Photos shared by the family show Steven smiling with his wife and daughters, capturing joyful moments that now serve as cherished memories.

Rottnest Island holds a special place in Western Australian culture. Accessible by ferry from Perth, it offers car-free exploration, wildlife encounters with quokkas, and some of the region’s finest coastal scenery. For spearfishers, the reefs around the island provide challenging yet rewarding conditions. Mattaboni’s connection to this environment was lifelong, rooted in appreciation rather than conquest.

Those familiar with spearfishing describe it as a sport that demands fitness, skill, and environmental awareness. Participants often use free-diving techniques, holding their breath while pursuing fish in their natural habitat. Safety protocols typically include buddy systems, bright flotation devices, and awareness of local marine conditions. Mattaboni’s group followed such practices, yet unforeseen circumstances can still arise in dynamic ocean settings.

In the aftermath, support has poured in for the Mattaboni family. Community members have offered condolences and practical assistance, reflecting the tight-knit nature of Perth’s outdoor community. Online forums and local groups have shared stories of Steven’s kindness, from helping others with boat maintenance to organizing group dives that strengthened friendships.

Marine biologists and shark researchers have weighed in on the broader context. Great white sharks play a vital role in ocean ecosystems as apex predators. Encounters with humans are often investigative rather than predatory, though outcomes can be severe given the animals’ size and power. Data from tracking programs show that these sharks frequent Western Australian waters seasonally, influenced by water temperature and prey availability.

For the Mattaboni daughters, their father’s legacy will be one of adventure and love. Family friends have spoken of plans to honor his memory through ocean conservation efforts or educational initiatives that promote safe marine recreation. Shirene has expressed a desire to focus on the positive impact Steven had during his time, ensuring his spirit continues to inspire.

Rottnest Island authorities have reiterated safety messages without closing access to the popular destination. Visitors are encouraged to swim in groups, avoid isolated areas during certain times, and heed any shark sighting alerts. The island’s management balances tourism revenue with responsible stewardship of its natural assets.

This event invites deeper consideration of humanity’s relationship with the sea. For many Australians, the ocean represents freedom, recreation, and connection to nature. Yet it also commands respect. Stories like Mattaboni’s serve as reminders that even the most experienced individuals navigate uncertainties when entering wild environments.

Colleagues from his surveying work described Steven as reliable and enthusiastic, someone who brought the same dedication to projects on land as he did to pursuits underwater. His passing has left a noticeable gap in both professional and personal circles. Memorial gatherings have begun to form, with plans for a celebration of life that reflects his vibrant personality.

As details continue to emerge, the focus remains on supporting the young family left behind. Donations and messages of support have flowed through various channels, helping Shirene navigate the immediate challenges. The couple’s daughters, too young to fully grasp the loss, will grow up hearing stories of a father who loved them deeply and embraced life with open arms.

Western Australia’s coastline, with its mix of rugged beauty and abundant marine life, continues to attract adventurers. This incident, while tragic, does not diminish the allure for those who approach the water with knowledge and humility. Mattaboni exemplified that mindset — a man in tune with the rhythms of the sea, now remembered for the joy he found there and the love he shared on shore.

In quiet moments, friends recall laughter on boats, successful catches shared among the group, and quiet appreciation for sunrises over the Indian Ocean. These memories preserve the essence of Steven Mattaboni far beyond the headlines. His story underscores both the rewards and realities of a life lived close to nature.

Authorities continue monitoring the area, and experts advise that while risks exist, informed choices allow millions to enjoy ocean activities safely each year. For the Mattaboni family and the wider community, healing will come gradually, supported by the strength Steven showed in life and the bonds he helped create.

The clear waters around Rottnest Island still sparkle under the sun, carrying echoes of those who ventured into them with passion and respect. Steven Mattaboni’s memory will endure in the hearts of those who knew him best — as a devoted dad, loyal friend, and someone forever connected to the sea he loved.