Streeter has swum across the English Channel 43 times, the most crossings done by an individual until surpassed by Chloe McCardel on 13 October 2021.
Her 1988 Channel swim, from France to England, set a female record of 8 hours 48 minutes.
In 1988, Streeter became the first woman to swim across the North Channel, between Northern Ireland and Scotland, a feat she repeated in 1989 and 1997.
She formerly worked as a currency trader in London, and now spends part of her life in Adelaide (Seacliff) and the summers in Dover as a Channel Swim boat pilot.
The Queen appointed Streeter a Member of the Order of the British Empire (MBE) in the 1991 Birthday Honours for her swimming prowess and charity fundraising.