A fabulous evening was enjoyed by all attendees.
The school described it as ‘a night full of unforgettable memories, laughter, and moments we'll always cherish’.
Here is a selection of photographs from the gala evening.
5. Ciaran mcGee with his dad Trevor at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics)
Ciaran mcGee with his dad Trevor at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics) : . Photo: Tom Heaney
6. Event organisers of Ardnashee Formal held in the Ebrington Hotel, Joanne Gallagher and from right, Rachel Barr and Alison January. (Photo - Tom Heaney, nwpresspics)
Event organisers of Ardnashee Formal held in the Ebrington Hotel, Joanne Gallagher and from right, Rachel Barr and Alison January. (Photo - Tom Heaney, nwpresspics) : . Photo: Tom Heaney
7. Aoibh Cutliffe with close friend Clodagh at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics)
Aoibh Cutliffe with close friend Clodagh at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics) : . Photo: Tom Heaney
8. Ava McNaught with her mum Tina at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics)
Ava McNaught with her mum Tina at the Ardnashee formal held in the Ebrington Hotel. (Photo - Tom Heaney, nwpresspics) : . Photo: Tom Heaney