[GoOfY-FoOt]

Florida has a few minor exceptions, in the Statute. One being, open carry is permissable if going to, coming from, or actively engaged in fishing.
The event is at a park on Tampa Bay, with a good-sized pier to fish from.

Here is the FL. SS 790.25 (3) (h)A person engaged in fishing, camping, or lawful hunting or going to or returning from a fishing, camping, or lawful hunting expedition;