Ever heard of a heliosphere? Don’t worry, you aren't alone. It’s a giant, glowing helium-filled balloon suspending an aerialist 20-metres above the ground and we're thinking you're going to watch this one a few times over.
The aerialist will perform a heap of elaborate twists, turns and tricks to create an illusion of weightless levitation so charge that phone battery to 100 per cent. This one is brought to you by the internationally renowned company The Dream Engine, who actually specialise in genius flying machines. Head here for more details.
What: Sydney Festival Heliosphere
When: Wednesday 9 January and Friday 11 to Sunday 13 January
Where: Barangaroo South and Prince Alfred Square, Parramatta
Here's everything else happening in Barangaroo this summer.
Image credit: The Dream Machine