Pupils have been visiting the farm as part of their education for the past 23 years.
However changes on the farm, owned by the Wilkinson family, mean the relationship will end.
Agri Learn tutors Allan Ramsay and Lisa Cormack teach the pupils practical skills during the year.
Mr Ramsay said it was likely about 760 pupils had been involved in an agriculture experience on Higham Farm over the years.
Many have gone on to have careers in agriculture and at least one ended up as a full-time employee on Higham Farm.
It was the first time most of them had any experience with handling sheep.
By the end of the day, the pupils were more confident, Mr Ramsay said, as they tended to stand off at the beginning.
Among their new skills, pupils learned how to move sheep, check their teeth to ascertain age, drench (with water) and simulate vaccination, and how to draft.
Over the year, the pupils were also taught many practical on-farm skills, such as fencing knots, water supply assembly and temporary fence assembly.
Pupils who continue in year 12 advance their skills to include more animal husbandry, with identification of unwell stock and checking and reporting on livestock, as they would in the workplace.
Ashburton College agriculture head of department Stephen Millichamp was grateful for the on-farm opportunity at Higham Farm, which was initially set up by the late Arthur Wilkinson and continued by the Wilkinson family.
It was invaluable experience for the pupils and the wider agricultural community.
Now the hunt was on for other farms with facilities and stock they could visit for the same experience in the future.
