Slightly wild guessing but this looks like materials for a substantial construction wall to me. The posts look pretty beefy, and designed to be bolted to concrete footings (they have a mounting flange). But it doesn't look permanent in that the wall panels look like a foam, perhaps with laminate surfaces front and back. (I've heard someone report it has a graphic pattern on it, but it looks like ripped plastic wrap to me...I don't see artwork.)
Maybe it's designed to last 4-5 years in Florida weather?
Below is my break down of what's there. 141 posts and 289 stringers (e.g., two stringers per post, upper and lower). It looks like it could encircle just over 5 acres max (if it's a circle). Since it's not going to be a circle, perhaps it's enclosing 2 to 4 acres...such as the possible Creature From the Black Lagoon area, or perhaps more logically (given where it's staged) the Ministry of Magic expansion area.
The next thing to look for is holes being dug and footings being poured somewhere!
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