The full scheme will look to redevelop and restore the derelict 53-acre site.
As well as elected members, several front-line staff attended the ceremony to mark the day.
The pupils shared the important work they have been doing over the school year.
The event celebrated the conclusion of the improvement works at Loggerheads Country Park.
Enhancements in key areas are bringing a refreshed look and upgraded facilities to the Prestatyn primary school.