In the crystal-clear waters off one of Western Australia’s most beloved holiday destinations, a heartbreaking tragedy unfolded on a bright Saturday morning in May 2026. Steven Mattaboni, a 38-year-old devoted husband and father of two young daughters, lost his life in a sudden and ferocious shark attack while spearfishing near Rottnest Island. The incident has sent shockwaves through the tight-knit Perth community, reminding everyone of the raw power of the ocean that so many locals cherish and respect.

Rottnest Island, affectionately known as “Rotto” to locals, lies about 18 kilometers west of Perth. Famous for its pristine white-sand beaches, quokkas, and vibrant marine life, it draws thousands of tourists and locals year-round for swimming, snorkeling, fishing, and relaxation. But its surrounding waters are also home to great white sharks, apex predators that occasionally venture close to shore, especially around reefs teeming with fish. On this particular morning, the beauty of the location turned into a scene of horror for Mattaboni and his friends.

Mattaboni, a surveyor by profession and an experienced spearfisherman known among mates as “Mattas,” had set out with a small group of close friends for what was supposed to be an enjoyable day on the water. They were approximately one kilometer offshore near Horseshoe Reef, northwest of the island, when the unimaginable happened around 9:55 a.m. A large great white shark, estimated at four to five meters in length, struck suddenly. Witnesses described the shark biting Mattaboni on the lower legs. His friends acted with remarkable courage, pulling him from the water onto their boat and racing toward the Geordie Bay jetty.

Paramedics and police performed CPR for more than 30 minutes upon arrival at the jetty, but despite their desperate efforts, Mattaboni could not be revived. The news spread quickly across the island and back to the mainland, leaving visitors and residents in stunned silence. Beaches on Rottnest remained open in the immediate aftermath, but authorities issued strong warnings about entering the water in the area and confirmed the presence of a large white shark. This marked Western Australia’s first fatal shark attack in over a year.

Those who knew Steven Mattaboni described him as a man who lived and breathed the ocean. An avid spearfisher and diver, he had a deep respect for the marine environment and understood its risks. Friends recalled how he often spoke about the thrill of being in the water, harvesting fresh seafood for family meals, and sharing his passion with others. Yet, above all else, he was a family man. His wife, Shirene, released a deeply emotional statement in the days following the tragedy, capturing the profound loss felt by those closest to him.

“Our hearts are irrevocably broken by the loss of Steven,” she wrote. “Known affectionately to his mates as Mattas, he was a one-of-a-kind gentleman — fiercely loyal, endlessly generous, and the most incredible father to our two beautiful daughters.” Shirene highlighted how her husband had been eagerly anticipating their youngest daughter’s upcoming birthday. The little girl, just two years old, was nearing a milestone that her father had been looking forward to celebrating with joy and love. The couple’s other daughter, around four years old, now faces a future without the dad who doted on her every day.

Photographs shared by the family show a beaming Steven surrounded by his wife and daughters — images of beach days, family outings, and quiet moments at home that now serve as precious memories. Colleagues and friends echoed Shirene’s words, painting a picture of a man who balanced a demanding career with unwavering commitment to his family. As a surveyor, he helped shape infrastructure projects around Perth, but his true fulfillment came from time spent with loved ones and in the ocean he adored. Many remembered his infectious laugh, his willingness to help anyone in need, and the way he lit up when talking about his girls.

The community response has been overwhelming. Tributes have poured in from across Western Australia, with people sharing stories of Mattaboni’s kindness and enthusiasm for life. Local spearfishing groups expressed sorrow over losing one of their own, emphasizing the respect spearfishers have for sharks and the ocean’s unpredictability. “He knew the risks, but he also knew the rewards,” one friend shared. “Steven always preached safety and awareness, but sometimes nature has its own plans.”

This tragedy has reignited conversations about shark safety in Western Australian waters. While fatal attacks remain relatively rare, Australia’s coastline sees its share of encounters, particularly in areas rich in marine life like Rottnest. Experts note that great whites are drawn to seal colonies, fish aggregations around reefs, and sometimes human activity that mimics their natural prey. In response to the incident, authorities have increased patrols and urged swimmers, surfers, and fishers to exercise heightened caution. Some have called for enhanced technology, such as AI-powered drone surveillance, to better monitor shark movements in popular spots.

Rottnest Island itself has a history tied to the sea. Named by Dutch explorers who mistook quokkas for rats (hence “rat’s nest”), it has long been a place where people connect with nature. The island’s second fatal shark attack in its recorded history — the previous one occurring in 2011 when an American diver was killed — underscores that while incidents are infrequent, their impact is devastating. Visitors this weekend continued to enjoy the beaches, but many did so with a somber awareness of the ocean’s dual nature: giver of life and beauty, yet also home to primal forces beyond human control.

For Shirene Mattaboni and her daughters, the days ahead will be filled with unimaginable grief. A two-year-old nearing her birthday will grow up without her father’s hugs and stories. The family will navigate milestones — first days of school, birthdays, holidays — carrying the absence of a man who poured his heart into fatherhood. Friends and community members have rallied around them, offering support, meals, and shoulders to lean on during this darkest time.

Steven Mattaboni’s story is a poignant reminder of life’s fragility. He embodied the spirit of many Australian men: hardworking, adventurous, deeply loving, and connected to the land and sea that define the country. His passion for the ocean ultimately led him to a tragic end, but it was that same passion that made him who he was — a devoted father who taught his daughters to appreciate the wonders of the natural world, even as he protected them from its dangers.

As the sun continues to rise over Rottnest Island’s turquoise waters, boats still dot the horizon and families play on the sand. Yet for one family in Perth, the world has forever changed. Steven Mattaboni leaves behind a legacy of love, adventure, and kindness that will live on through his wife and daughters. In their memories, he will always be the incredible dad who made every moment count — a true gentleman taken too soon by the sea he loved.

The ocean claims lives occasionally, but it also gives countless moments of joy and connection. For those who knew and loved Steven, the challenge now is to find solace in those memories while honoring the man who embraced life with open arms. His story will undoubtedly fuel ongoing discussions about balancing human enjoyment of the sea with respect for its powerful inhabitants, ensuring that future generations can continue to experience its wonders safely.

In the end, Steven Mattaboni’s life, though cut short, was rich with purpose and love. As his family mourns, the broader community mourns with them, united in grief for a father whose light shone brightly in the lives of his wife, his two young daughters, and everyone fortunate enough to cross his path. May the waters he cherished bring them some measure of peace in the difficult times ahead.