Manly Sea Life Sanctuary in Sydney, Australia, was a tourist favourite for more than 55 years before shutting up shop in 2018.
The aquarium was known for its a $12 million underwater tunnel which was in the 1980s and four-million-litre circular tank.
But despite its long run, the sea life hub has fallen into disrepair since its closure and now remains a jilted shell of its former self.
Included in the remains, which were captured in a Tiktok video, are defaced walls, grimy floors and old water pooling were it shouldn’t.
Perhaps more eerie is a noticeboard left untouched since the aquarium’s last day in business.
“Today is our last day,” the sign read.
“Thank you so much for supporting us for the last 55 years!”
At the time of its closure, Senior Operations Manager, Ashley Hayes said the choice to close “wasn’t easy”.
“When the decision was made that we were closing, it was a hard time for everyone,” she said.
“From our staff members to the community members who have been visiting us for years, it certainly wasn’t an easy decision to make.”
The aquarium hosted more than 2000 animals at the time it closed which all had to be rehomed.
However, Transport NSW were quick to slap down the social media users’ video exploits as “illegal trespassing”.
“Transport would like to stress to the community that for their own safety, the site should not be accessed,” a statement read.
“Safety is Transport’s number one priority and mitigation measures are in place to prevent illegal access.
“Further security measures are now currently being reviewed.”