Injured veterans from New Zealand, Canada and Britain are currently cycling the length of the country on purpose-built tandem bikes.
It's the first ride of its kind, raising money and awareness for wounded soldiers.
Cyclists received much-needed massages after covering 1000 km in five days.
Co-organiser of Operation Ride 2018 Amy Baynes says it's been an absolutely horrendous feat but every day they have made their cycle goal.
That end goal is biking from Bluff to Cape Reinga in just 21 days.
It was especially gruelling for these veterans, many of whom have serious injuries from their time serving.
"Complete burns of the body, amputees of legs and arms, PTSD, which are the invisible wounds that we predominantly see in New Zealand," says Ms Baynes.
She herself was wounded in Afghanistan in 2004, and jumped at the chance to help organise Operation Ride 2018.
It was initiated by UK Charity Pilgrim Bandits which uses endurance sports to help injured veterans recover.
While raising money for charities that support wounded veterans, Canadian Dan Hrechka says Operation Ride is also about raising awareness - epecially for the injuries you cannot see.
"I have my arms and legs, I look perfectly fine but on the mental health side of it, it's terrifying," he told Newshub. "There are a lot of issues that are not noticeable."
The teams are due to reach Cape Reinga by November 16.
If you would like to support the Kiwi cyclists, please go to their Give-a-little page.
And to keep track of the teams, check out their Facebook Page