The physiotherapist died of cancer a year after her son Sam was killed in a car crash in 2025.
Why it mattersThe show was deeply personal: Gardiner wanted a travel adventure with Sam, who had ADHD. Millions watched their transformative journey.
AustraliaRace Across the World has a strong Australian audience, and viewers remember her warmth and courage from the 2020 series.
Corroborated bytelegraph.co.uk·bbc.co.uk
✓ Claims checked against the source. checked 1 h ago
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