As a school sponsored event it is a prohibited location. It is not legal to carry.
(2)(a) A person shall not possess any firearm, electric weapon or device, destructive device, or other weapon as defined in s. 790.001(13), including a razor blade or box cutter, except as authorized in support of school-sanctioned activities, at a school-sponsored event or on the property of any school, school bus, or school bus stop; however, a person may carry a firearm:
For the purposes of this section, “school” means any preschool, elementary school, middle school, junior high school, secondary school, career center, or post secondary school, whether public or nonpublic.
c)1. A person who willfully and knowingly possesses any firearm in violation of this subsection commits a felony of the third degree, punishable as provided in s. 775.082, s. 775.083, or s.775.084.
(e) The penalties of this subsection shall not apply to persons licensed under s. 790.06. Persons licensed under s. 790.06 shall be punished as provided in s. 790.06(12),...