Stop in for a cup of coffee

From the Nuckin Futz category this morning. Saw this on the news. To be built on top of a London hotel... I saw 2 explanations of how you get in/out. Apparently either a 'pod' or staircase comes up through the water. Huh? And if something goes wrong? Lift you out with a chopper or what. I think I will just go splash around in a pothole.
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