Parents and pupils have marched from Cwmcarn Village to Cwmcarn High School today to show support for the school.
The site shut last year after abestos was found.
Parents and pupils have told ITV News that they are worried about its future.
More top news
Welsh Secretary Stephen Crabb has launched an attack on Labour leader Ed Miliband, saying he "doesn't give a toss about Wales".
Mainly dry with lengthy clear spells overnight and just a few showers likely, especially in the north and west.
Ysgol Uwchradd Caergybi became the UK's first comprehensive 65 years ago. Academies are now dominant in England, but certainly not in Wales.