And if they're using a method of teleportation? If the ocean acts as an event horizon? It's not a bad plan, but you can't rule out the possibility that they do just appear.

[Clark's alternate persona may be intelligent, but while Bruce has been steadily working towards increasing his public image in the past few years, he's still seen as the profligate playboy. Here, at least, there's a malleable foundation to his public identity. No one yet who knows or can assume exactly how Bruce Wayne is supposed to act. So while his tone is light and airy, cavalier as anything, he's still being somewhat serious.

Because like it or not, they're still Superman and Batman discussing a mission. Like any other day of the week back home.]