How did Kay Longstaff survive 10 hours at sea after falling overboard?

The British tourist was rescued after falling from a cruise ship into the AdriaticIf you are going to fall from a cruise ship into open water, there are worse places to do so than the Adriatic Sea at the height of summer. The temperature of the stretch of water that separates Italy from the Balkan peninsula is above 20C (68F) in August and minimal wind means that the sea tends to be calm.Kay Longstaff said she fell from an aft deck on the Venice-bound Norwegian Star around midnight on Saturday a