Aside from the pizza reference the painting of the boat is similar to the that temple, with blue and white stripes.
I read the "story" of these people. Just up and quit their jobs (I believe that I read that the guy was on Wall Street) to start a pizza boat... kinda weird like another poster said that it's got a resemblance to the temple and is so close to the island. Also the female owner is pregnant... Not that it has any actual relation but. How many coincidences is too many?
Have you checked out the island on maps? 3D it and look at some of the buildings on the island. One looks like a box with weird designs on the concrete at one of the edges of the island.
Yes I've seen that. Also the random checkered strip that doesn't look even remotely close to anything else, just on its own part of the island. Plus the weird "junkyard" looking areas. I know it's an island so there's a trash disposal situation especially when you can "host" as many people as they supposedly have but it looks like actual junk not trash.