Find out the science behind fire walking, beds of nails, water divining and more… Myth busting with Richard Saunders and Rachael Dunlop, as they perform Mystery Investigators as part of the ABCs Family Fun Day at Ultimo Science Festival. When: Saturday 29 August, 10am – 4pm. Where: ABC Foyer, 700 Harris St, Ultimo. Tickets: Free, no bookings required. For more details, see the Ultimo Science Festival website.