The night starts at 8PM on the 21st.
Location details are here.
https://www.assa.org.au/facilities/theheights/
I'm currently getting the date added back into the calendar again as it's slipped off.
If the weather is cloudy it will likely be canceled. Final decision is an hour or two before hand.
We tend to be busy at the start, but this should quieten down later, depending on how many people attend.