Okay, well, floods are when the ship takes on 'water', which is actually bits of other universes, and it changes a bunch of people on the ship. How it changes them depends on the flood. You might turn into a woman, or you might suddenly go all evil or whatever. You never know.

Ports are when we stop off at a place for a while. Might be a vacation spot, might be a place where you'll have people trying to chop off your hands to sell on the black market. Again, you never know.