This installation seems to be a typical Article 555 pier. There are at least 50 of them within a mile of my house and most have power. I can get pictures of the "good, bad and ugly" if you guys want to see some.
You can't confuse this with the Article 682 "natural and artificially made bodies of water" because that refers to equipment in the water, not above it on a pier.
I agree there are inconsistent rules between the two but "welcome to the NEC"
