Seasonal site - chain tie-downs?
Not Florida, but flood streams do happen. Not enough to wash it out to the sea, but "can be" enough to move the trailer and/or flip it to some ditch. 21 ft box of trailer. Heavy winds happen too, but...
Forum Discussion
I'd be sure no water lines or electric lines were in the ground before I screwed or pounded anything into it. Then I'd use some chain and these:
