Of course, something even remotely nightmarish like this only occurs in film; “The Poseidon Adventure,” “Poseidon,” “A Night To Remember,” “Titanic,” “Open Water” and “Open Water 2,” et al.

The last passenger ship to actually sink due to an iceberg strike was the RMS Titanic on April 14th of 1912 with a loss of 1,595 souls. Other than that sole event, things like that simply don’t occur. Right?

Wrong. A ship sank Friday in frigid Antarctic waters after striking a submerged iceberg, though all 154 passengers and crew were sucessfully evacuated prior to the sinking:

The ship took on water quickly,” (passenger Paola Palavecino) was quoted by the Argentine news agency Diarios y Noticias as saying in a call from the (rescue ship) NordNorge (a Norwegian liner).

The 75-metre-long Explorer was carrying 91 passengers, nine expedition staff members and a crew of 54. It was completing an ecological tour of Antarctica when the accident took place around midnight Eastern time Friday, about 850 kilometres southeast of Ushuaia, the southernmost Argentine city.

“The ship ran into some ice. It was submerged ice and the result was a hole about the size of a fist in the side of the hull so it began taking on water. . .but quite slowly,” Hayes said.

Hours after the incident, the Chilean navy confirmed that the cruise ship had sunk.

G.A.P. Adventures, a Toronto-based company (and owner of the Explorer, a Liberian-registered ship) offered tourists a unique 10-day trip which departed November 11th from Ushuaia, Argentina, then wound through the Drake Passage to the Antarctic Peninsula and South Shetland Islands. The cost was $4,895 per passenger. Frankly, it sounds like a trip I’d love to have taken myself, assuming I’d stay dry and the ship completely vertical throughout its voyage.

“Experience a voyage of a lifetime to a land where penguins rub shoulders with seals and orcas and whales are often seen plying the icy waters,” G.A.P. says on its Web site. The newest G.A.P. company update is here, regarding Explorer. Inquiries for American passengers are to be made via kiraz@gap.ca.

So imagine this scenario:

You’re on the M/S Explorer, a 246-foot passenger ship (built in 1969, and possessing, you are told, a reinforced hull to protect against ice penetration) engaged in a summer cruise of Antarctica, near Bransfield Strait off King George Island.

During nighttime hours, your small ship encounters pack ice and then very dense ice, 60 miles off the Antarctic coast. Your fellow passengers consist of 12 Canadians, 17 Dutch, 10 Australians, 24 Britons and 13 Americans (excluding yourself). You are awakened from your sleep, told to gather a minimal amount of belongings (if any) and report immediately to your lifeboat station with your vest. The call to abandon ship is given 90 minutes after the first call.

You dress quickly, your mind racing: what to bring? Will my (wife/husband) be okay? How much time do I have? Will my clothes be warm enough? If I wear heavy clothes and I fall in the ocean, will I sink? Is the ocean actually freezing? Will I watch the ship sink? Will I even survive? How fast is fast? How much time do I really have?

Twelve lifeboats hit the frigid water. Every passenger and crew member leaves the ship alive. The seas were calm and ambient temperatures at freezing. The waters grew choppy and the skies overcast. The occupants spend up to six hours in their lifeboats whilst awaiting rescue. Not unlike the RMS Titanic sinking, those persons had that amount of time in which to ponder their fates. And immersed in freezing water, the average human has 90 seconds to exist prior to hypothermia. In two minutes the body has completely abandoned its extremities in order for the core to survive. One’s ability to kick legs, move arms, is gone. The only relatively-warm portion remaining is the chest; if the head and/or neck are immersed, rational thinking is halted. Finally, a minute or two later, autonomic reflexes are impacted. It is said that death in freezing water is almost euphoric. I’d rather not find out, thank you.

Unaware of my readers’ proclivities, I readily admit that I swim poorly; I suggest that I sink much better — moreso in freezing waters. In my youth I spent much more time in watery conditions, at lakes, in the ocean, snorkeling off Hawaii. These days, if fish swim in it, I avoid it. It’s that simple. At my advanced age I’ve already been corrupted by “Jaws,” “Titanic,” and the submarine death scene from the beginning of the movie “Abyss,” which I find to be horrendously frightening — but that’s just me.

Are icebergs still a threat? The quick answer: yes. But due to advanced technology, maritime and otherwise, the chances of abrupt loss of life are minimal.

But still, as cavalier as we were in 1912 about “unsinkable ships” — are we finding ourselves likewise as cavalier about technology in 2007?

You tell me.

These waters are still as frigid.

BZ