The sun is peeking over the horizon at Bondi Beach as Peter Tonagh heads out for a dawn run. It's a fresh clear winter's morning and Tonagh's route traces Sydney's coastline south towards Clovelly, as the rising sun illuminates some of the world's most picturesque views.

Tonagh – a runner who has completed the New York and Tokyo marathons and holds ambitions to one day complete the Big Five world marathons – gets out at least five times a week.