74-year-old David Williams will be competing in the world’s first urban ultra marathon.

The even is coming to Sydney and it is a 80-kilometre that starts at Bondi Beach and wraps around the whole harbour ending at Manly Beach.

David Williams told Jim Wilson it was too good of an opportunity to pass up on due to his passion.

“I encourage anybody to get out there and enter this race.”

Press PLAY below to hear David’s story