In 2014, state miner Solid Energy decided against re-entering the mine and bringing out the bodies of those killed.
Mr Kokshoorn said the families would be gathering to reminisce and support each other – despite division about whether to keep fighting for the recovery.
“There are probably now more disagreements than there was immediately after the disaster. We were in the same boat. But some people have coped better than others.”
Jeff Hampton/ 3 News)
Mr Kokshoorn said he, like others, still found himself becoming emotional recalling the disaster.
“I saw so much despair on that day. The wailing, the collapsing when they were told there was no more hope. It stays with you forever.”
But the area was also trying to recover from the economic toll of the explosion, the failure of Solid Energy and falling demand for coal, he said.
A new walking track – the Pike29 Memorial – announced in the area this month was part of the region’s attempt to shift to tourism.
But even that had opened up old wounds for some and started disagreement, Mr Kokshoorn said, with some saying it was disrespectful until the bodies were moved from below the path.
Pike River Families Group Committee spokesman Bernie Monk said although families would have preferred the mine be re-entered, they had voted for the walk to help the area’s economy.
“Did they want to carry on the fight and go for another 10 years plus or take what’s going now and let that be a memorial for the men underground?” he said.
He said they still hoped for a recovery in decades to come.
On November 19, 2010 a large methane explosion at the mine left 29 men caught underground. A second blast five days later dashed all hope of a rescue.
Two Australians, a South African and two Scots were among the dead. The youngest victim was 17, the oldest was 62.
Their families and friends will meet this morning before going to the site to mark a minute of silence at 3:44pm.
In the evening a small public memorial will be held in the town of Blackball.