The Stack 360 group has been lighting up the Port Kembla stack since last week to give a glimpse of the structure's possible future.
Port Kembla Copper is planning to bring down the 200-metre structure on September 5. However Stack 360 is still pushing for it to be turned into a tourist attraction.
"The idea was to make the public aware of the potential of the stack," said Stack 360 member Wal Pritchard.
"There aren't many 200-metre towers in Australia. There are a few tall buildings in Sydney but none of them are towers like this.
"We want to show from a number of different angles just how attractive this feature can be."
The stack was lit up for the first time last week, on Thursday, Friday and Saturday.
Mr Pritchard said people had been turning up to take in the light show.
"People have been driving through all the time, families stop and get out of their cars, with the kids rugged up in their onesies," he said.
"We provide a little bit of music. It's been a real family festive atmosphere, it's been great."
David Oliveri was in Electrolytic Street near the base of the stack with his partner Tammie Gowans and children Iziaha and Kaiden to see the light show last night.
"I think it's an excellent idea. At least there's a use for it. You know you're in Wollongong when you see it," he said.
"I reckon they should have been lighting it years ago," Tammie added.
Mr Oliveri reckoned it would be good to use the stack as a tourist attraction rather than bring it down.
Claude Spinelli's company Lightsounds Wollongong has been responsible for the patterns on the stack.
Mr Spinelli said he had been surprised how popular the light show had become.
"When we did it last week we just did it as a trial, they just wanted it lit up with plain red and white colours," Mr Spinelli said.
"From there we started being more creative and putting up some patterns.
"Before you know it we started getting all these photographers, mums and dads and people up along the street coming out to have a look.
"We planned to do just one hour per night, from 6.30pm, but we ended up staying there until 9.30 every night."
There is just one more chance to see the stack lit up - this Friday from 6.30pm. For that night, the projections will be visible from the Hill 60 side, after a request from photographers who wanted to take images of the stack lit up with the city and escarpment as a backdrop.
If Stack 360 has its way, there will be plenty of chances to see the stack lit up.
"We would like to see it go on for years and years and years but that will depend on whether the Mayor and the council have the same vision as the people of the Illawarra and the people of Port Kembla," Mr Pritchard said.