When Shane Hoy steps into the darkness of the old Dularcha Railway Tunnel this November, he'll be thinking about the moment his own life went dark, the moment he heard four words no one expects: "You have prostate cancer."
Mr Hoy, of Caboolture, was diagnosed in April this year.
"I didn't feel sick. I didn't look sick. I was just tired, but who isn't?" he says. "If my GP hadn't suggested a routine PSA test, I never would have known."
Within weeks, he went from feeling in control to navigating biopsies, scans, and decisions no man is ready for.
"I thought prostate cancer was something that happened to older men," he says. "I was wrong. And I had no idea how common it was."
Every day in Australia, 79 men are diagnosed with prostate cancer - many with no symptoms.
But what shocked Mr Hoy most wasn't just the diagnosis.
It was the silence.
"No one talks about it," he says. "Not at work, not with mates, not even in families. There's a lot of fear around it. And that silence almost cost me my life."
Treatment brought tough days and long nights, but Mr Hoy found strength in support from those around him.
"So many men try to go through this alone," he says. "But you don't have to."
Now in recovery, Mr Hoy has turned fear into purpose.
He has rallied his colleagues to join him on Blue Steps Through the Tunnel, a 5km awareness walk along the Dularcha Tunnel Track to support men with prostate cancer and encourage early detection.
"I asked a couple of people at work to join me," he laughs. "Next minute, I had a whole team!"
For Mr Hoy, the Dularcha Tunnel represents what prostate cancer feels like: darkness at first, and then light.
"The Tunnel Track is a powerful symbol, a dark tunnel that eventually opens to light, much like the cancer journey itself.
"It's a chance to shine a light on men's health, start conversations, and raise much-needed funds to support more PCFA nurses, who play a vital role in men's physical and emotional wellbeing."
Mr Hoy has been preparing physically and mentally.
"I walk every day, and I've been working with my health team to stay strong and healthy. Mentally, I focus on gratitude and staying present."
At the end of the walk, as the group moves toward daylight, Mr Hoy hopes the message is clear.
"Getting tested saved my life. If this walk encourages even one bloke to get checked, then every step is worth it," Mr Hoy added.
"Don't wait. Just do it. It's a simple test that could save your life."
