Elle Macpherson lounged in a white bikini this morning on a yacht off the coast of Sydney. The London-based supermodel is in her home city enjoying a mid-Winter break with one of her sons, 8-year-old Aurelius Cy. He and his older brother, Arpad Flynn, live in the UK with their mom Elle, but their father, Arpad Busson, who now dates Uma Thurman, frequently comes for visits. Elle showed off her beachy style in a long dress during a later walk with Aurelius Cy, though it's her sporty school run ensembles that garner her attention during the colder months. Elle treated herself to the getaway to escape the chilly England temperatures after partnering up with Virgin to launch its new staff uniforms.