The controlled sinking of the Folegandros off Chania marks a key milestone in the Apokoronas underwater tourism project, which combines artificial reefs, shipwreck dives and marine habitat creation

Described as one of the more treacherous dive spots in the greater Athens area, authorities now believe that strong underwater currents likely dragged the diver into a narrow undersea tunnel, where he became trapped

The 34-year-old local man was diving at the spot with a partner - as is standard scuba protocol - just off the "Limanakia" (little harbors) site in coastal southeast Athens, when he failed to return to the surface

Later information solves 'mystery' of archaic-looking finds off Hersonnisos beaches

Ten shipwrecks, some dating back to 3000 BC, were discovered off the coast of Kasos in Greece following an underwater archaeological study.