Divers have discovered what is thought to be the world's oldest drinkable champagne in a shipwreck in the Baltic Sea, one of the finders said Saturday. They tasted the one bottle they've brought up so far before they even got back to shore.

Diving instructor Christian Ekstrom said the bottles are believed to be from the 1780s and likely were part of a cargo destined for Russia. The nationality of the sunken ship has not yet been determined.