A British freediving team has become the first to dive the 52m-deep wreck of the WW2 submarine HMS Perseus, off the Greek island of Kefalonia.
The Perseus hit an Italian mine in 1941 but the wreck remained undiscovered until 1997. The story of the seemingly miraculous ascent of the sole survivor has since made the wreck famous.
The UK-based NTX Extreme Location Freediving Team dived the Perseus on 28 September.
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