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The 45 phone pings that traced the last known steps of Celine Cremer

Belgian backpacker Celine Cremer disappeared in Tasmania in June 2023. Her phone, found years later, contained GPS data that helped trace her final movements. Her remains were discovered in January 2026 by a solo searcher, prompting her mother to warn against relying solely on phones for navigation.

By Tertius News AI Desk 1 outlet · 2 articles Version 1 Coverage Apr 12–19, 2026 Published Aug 15

Lead

The mystery of what happened to Belgian backpacker Celine Cremer, who vanished while on a solo bushwalk in Tasmania in June 2023, has been pieced together through 45 phone pings that mapped her last known steps. Her remains were found in January 2026, more than two and a half years after she disappeared, following a private search organized by her friends and family. Her mother, Ariane Mathieu, now shares a stark warning for young travellers: don't always trust your phone.

Coverage Comparison

The story of Celine Cremer's disappearance and the eventual discovery of her remains has been covered by ABC Australia, with reporting that spans both the factual timeline and the emotional aftermath. Two separate ABC Australia reports were reviewed. The first focuses on the events leading up to her disappearance, the search efforts, and the discovery of her remains. The second report centres on the warning from Celine's mother and the lessons drawn from the tragedy.

While both reports share the same core facts, they frame the story differently. The first report emphasizes the tragic nature of the event, using language such as "tragic," "heartbreaking," and "devastating." It leads with the narrative of a young traveller's disappearance and the search that followed. The second report adopts a more cautionary tone, highlighting the limitations of mobile phones and the importance of preparation. It describes the family's feelings of "sadness," "relief," and "gratitude" in the aftermath of the discovery.

Despite these differing angles, both reports agree on the essential details: Celine went missing on June 17, 2023, after setting off from a car park near Philosopher Falls; her phone was found two years later with GPS data; a private search led to the discovery of her remains on January 28, 2026; and her mother now warns against relying solely on phones for navigation.

Key Claims

Celine Cremer, a 31-year-old Belgian backpacker, went missing on June 17, 2023, while on a solo bushwalk at Philosopher Falls in Tasmania. She had been in Australia for six months and was planning to drive to Darwin to meet her best friend. After celebrating her 31st birthday, she set off for the west coast, arriving in Waratah on the morning of June 17. CCTV showed her at a local service station before she drove to the Philosopher Falls track car park, where she parked shortly before 2pm. The 3-kilometre return hike typically takes about an hour.

At 3:32pm, her mobile phone registered a GPS ping about a kilometre beyond the trail, near Magnet Dam. The phone sent 45 pings in total, providing a trace of her movements. Her phone was found partially buried in undergrowth during a search in December 2025.

Celine's remains were discovered on January 28, 2026, by a solo searcher. This came after a large-scale private search of the Philosopher Falls forest, organized by Celine's close friends and family. Previous police searches had not located her.

Celine's mother, Ariane Mathieu, in an exclusive interview with Australian Story from her home in Belgium, warned that young people are "very, very confident with the phone" but said, "you don't have to trust in your phone always." She added that for some activities, it is better to have a good map or satellite GPS. She also noted that European travellers might not be aware that Australia has more network blackspots than they are used to. Google Map data suggested Celine had difficulty getting a connection in the dense forest around the time she got lost. Ariane said she had wondered why her daughter hadn't called when she got lost, but when the phone was found, she understood that Celine had lost it.

Inspector Andrew Hanson from Tasmania Police advised people to stay on formed tracks, tell others where they are going, and carry appropriate communication equipment when bushwalking.

Perspectives

Celine's mother, Ariane Mathieu: In her interview with Australian Story, Ariane Mathieu expressed that the rest of her life will be filled with sadness at the loss of Celine, but she hopes sharing her family's story will save others from such heartbreak. She emphasised the limitations of mobile phones and urged young travellers to carry a good map or satellite GPS.

Tasmania Police: Inspector Andrew Hanson offered practical advice for bushwalkers, stressing the importance of staying on formed tracks, informing others of your plans, and carrying suitable communication equipment. The police perspective focuses on prevention and safety measures.

How this outlet told it

ABC Australia as of Apr 12, 2026, 7:01 PM UTC

Framing: Tragic story of a young traveler's disappearance — Somber and reflective

Facts Included:

Celine Cremer went missing on June 17, 2023
She was last seen at Philosopher Falls in Tasmania
Her phone was found two years later with GPS data showing her movements
A private search was launched by her friends and family
Her remains were found on January 28, 2026, by a solo searcher

Read the source article →

ABC Australia as of Apr 19, 2026, 7:01 PM UTC

Framing: A mother's warning and a tribute to a young traveler — Reflective and cautionary

Facts Included:

Celine Cremer's mother warns against relying solely on phones for navigation
The discovery of Celine's remains brings closure to her family
The importance of being prepared for bushwalks and letting someone know where you are going

Read the source article →

What was claimed, and who backed it

Each row is one claim, attributed to the outlet whose wording states it most clearly. Confidence rates how directly the source text states the claim — explicit and unhedged rates high; hedged, pieced-together, or internally inconsistent statements rate lower. It does not measure whether the claim is true. Status counts the distinct outlets we found asserting it — so a single-source claim can still show high confidence, and a multi-source claim can show medium. Every one of those outlets is named beside the status, so you can check the count against the list. For claims extracted before we began storing that list, the row says so: it names the outlet the claim is quoted from and states that we have not recorded which outlets backed it. Outlets wrote at different times, so a figure that evolves — a casualty count, for example — can legitimately differ between rows; check the "as of" time next to each claim's source.

Claim	Confidence	Status
ClaimCeline Cremer went missing on June 17, 2023, while on a solo bushwalk at Philosopher Falls in Tasmania.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 12, 2026, 7:01 PM UTC
ClaimCeline's phone was found two years later with GPS data showing her movements before she disappeared.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 12, 2026, 7:01 PM UTC
ClaimA private search was launched by Celine's friends and family, which eventually led to the discovery of her remains on January 28, 2026.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 12, 2026, 7:01 PM UTC
ClaimCeline's mother, Ariane Mathieu, warns against relying solely on phones for navigation, especially in areas with limited network coverage.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 19, 2026, 7:01 PM UTC
ClaimThe discovery of Celine's remains has brought closure to her family and friends, who had been searching for her for over two years.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 12, 2026, 7:01 PM UTC
ClaimInspector Andrew Hanson from Tasmania Police advises people to stay on formed tracks, tell others where they are going, and carry appropriate communication equipment when bushwalking.	ConfidenceHigh	StatusSingle-source via ABC Australia as of Apr 19, 2026, 7:01 PM UTC

Transparency & Audit Trail

1 outlet · 2 articles consulted: ABC Australia 6 claims extracted Version 1 Written 2026-08-15