It's the final big effort to get the fire tanker over the line.
Thirty one Dannevirke High School students completed the eight-week Cactus programme on Saturday when they tackled the gruelling Longest Day challenge.
Cactus is a military-style youth programme of physical and mental training designed to extend a young person's mind and physical capability.
It's for Year 9 to 13 students.
The programme was introduced to Dannevirke by Senior Constable Wayne Churchouse.
This is the sixth year the programme has been run.
From there the group carried logs from the school gym to Cole St.
One of the toughest challenges then took place when the students towed two utes up Hospital St hill.
A Search and Rescue exercise in the Mangatera Reserve was followed by a Medevac exercise.
From there the group ran to the Dannevirke Domain where they marched to the cenotaph to respect and remember the victims of war.
The students then had to carry the logs from the domain to St John's Anglican Church before assembling on Swinburn St for what was the toughest task of the day, towing a Fire Service water truck to the fire station in Denmark St.
Plenty of encouragement and support by family and friends saw them successfully complete the task.
After a short rest and plenty of hydration, the students then had to run back to the school gym, once again carrying the logs from the church.
They then paraded in the gym and were issued with their graduation tops.
The students then had a two-hour break before marching from Gordon St to the Dannevirke Services and Citizens Club for their graduation ceremony.
A report on this event will be published on Thursday.