CELEBRATIONS kick off on Friday for Naracoorte South Primary School's long-awaited 50th birthday.
Starting with a junior primary assembly at 10am, there will be a light morning tea on sale for $5 in the hall followed by a tour of the school.
Principal Anna Young said it would give visitors a chance to see contemporary learning and note how the school had changed over the years.
"It will show that it is quite different to what it used to be," she said. "The school band will be playing in the hall, in the gymnasium there will be a physical education lesson, in the music room a music lesson.
"There will be a range of interactive things on show in the Science and Sustainability Centre, including newly hatched chickens, and the Environmental Enclosure."
The Toy Library will also be open from 11.30am to 12.30pm.
The afternoon will then finish with drinks and nibbles.
On Saturday, registrations will be taken in the hall at 1pm before a roll call on the oval.
There will be three 12 diameter circles drawn out on the lawn in a Venn diagram, representing students, parents and staff.
When names are called guests will go to their appropriate circle or the interlapped sections.
At the end those in the centre segment - people who have been a student, staff and parent - will release a helium balloon in a ceremony celebrating the school's five decades of education.
"It will be a special occasion," Mrs Young said.
A commemorative wall will be opened by Naracoorte Lucindale Council mayor Erika Vickery along with 1963 students Vicki Munro and Ross Muegge and 2013 students Maisy Hoskin and Archie Ebert.
A planting will also take place at a memorial rock to recognise former parent Shirley Bennett's commitment to the school's gardens. At 3pm a birthday cake will be cut and afternoon tea enjoyed.
Throughout the day there will be memorabilia on display and a memoriam table to recognise any staff, parents and students who are no longer here.
Guests are then invited to dinner at Billy Macs from 6pm with registrations essential.
Former principal Derek Blackwell (1986 to 2004) will be the master of ceremonies and a toast will be made by mayor Erika Vickery.
Mrs Young said people would also be encouraged to share a two-minute anecdote about their experiences at the south school.
Sunday is the final day of celebrations. There will be a bacon and egg breakfast in the hall at 9am before people make their way home.
"We have got quite a few people coming to each event," Mrs Young said. "The committee organising it have worked very hard (and) we are starting to get very excited."