Outside of New Year’s Eve, there’s only about 3 other occasions when some part of Sydney streets are closed till late at night. The Chinese New Year parade used to be one. But the light rail construction has now suspended it.
The other times are Vivid in winter and Mardi Gras. All of Oxford St Darlinghurst is closed off from vehicles all the way down to George St cinemas in the city and I just like the vibe when everyone walks back to the train station after the end of Mardi Gras. I think this stretch goes for 5km
These photos are taken from various spots during Mardi Gras.