Originally Posted By: hikermor
On something the size of a cruise ship, I would think the suction generated by the sinking vessel would be a serious impediment.


If you did get pulled under by 'suction' alone and had life-jacket on, I am pretty sure you would bob right back up to the surface. You might need a fresh pair of undies, but I think you would be OK, assuming you didn't drown in the process.
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Gary