Suart was born in Hamilton, Victoria, to Arthur Law, an inspector of schools and later principal of Melbourne Teachers' College, and his wife, Lily (née Chapman).
Suart attended University High School, Melbourne, where one of her friends was Shirley Duncan; the pair had dreams of travelling the world.
[3] At the age of 19, Suart began her 11,000-mile (18,000 km) bicycle trip around Australia together with her 21-year-old friend from school, Shirley Duncan.
[1] They took a variety of jobs to finance their trip, including canning fruit in a factory, selling sandwiches from their bikes during the wet season, helping on a cattle station and being mannequins at a large city store.
[2] Following her bicycle adventure, in June 1949 Suart went to visit her brother Peter, who worked for Shell Oil at Seria in Brunei.
Brian died in 1990, and Suart continued to travel the world after his death,[5] visiting Antarctica, Bhutan, Tierra del Fuego, Bulgaria, the Amazon, Yangtze and Irrawaddy rivers, China, Borneo, Hong Kong and Russia among others.
[2][6] In 2007 Suart featured on the BBC Radio 4 travel programme Excess Baggage, discussing her bicycle ride.