On all the evidence we have, the flood story as told is a fantasy.
here a few things that are NOT proof it did NOT happen.
Snare &Racket: thank you for bringing this up for the new readers. but:
Noah's ark would not have needed oxigen mask for all to survive, because the airpressure of the atmosphere, when lifted everywhere, would still be nearly the same, for the volume of the air mass, column did not change. The rising tide lifts all boats, but also the air.
Yan Biblyan: A wooden vessel, that size, that loaded with even the most modern glues, fasteners would disintrigate even in the smoothest of seas, just the elephants walking. water does not lift mountains, its the other way around.
We can SEE evidence of the Big Bang beginning. A flood COULD have happened because the BB beginning made everything possible, but the flood did not happen, and we can not see evidence of it.
it is just another story piled onto the one of the spare-rib cloned lady listening to the talking snake- and not to be bettered the talking ass. and the walking on water and what not.