From ocean waves to remote land, Miranda's Mark Woods is on a 'wheely' big mission.
The dedicated cyclist is pushing the pedals from Perth to Sydney, to raise money for those in need.
Mr Woods will travel more than 4200 kilometres. Before this trip, his longest ride was 100 kilometres. He has already cycled 1000 kilometres and is currently cycling through the Nullarbor.
The Leader previously published a story about Mr Woods in 2021 about his university thesis survey that was designed to improve water safety awareness among multicultural communities.
Having completed the survey and thesis, the results of which have been published in a paper, he is now cycling by himself, aiming to raise $4200, a dollar for every kilometre, for Medicins Sans Frontiers (Doctors Without Borders).
He is hoping to help them continue to provide emergency medical aid to people desperately in need, including those displaced in Ukraine.
"Doctors Without Borders are providing critical medical care in countries affected by conflict, epidemics, disasters, or exclusion from healthcare," Mr Woods said. "They work in over 70 countries and are especially focused on Ukraine given the current war."
He said while challenging, the scenery was beautiful.
"Cycling across Australia unsupported has its struggles. The days are long," he said. "The struggles I am experiencing are nothing compared to the people hiding underground in the metro stations of Kharkiv.
"Also it is amazing to explore the beautiful country that is Australia, from the lookouts over Esperance to the starry nights."
Mr Woods will complete his journey at Cronulla.