Tributes are being paid to the three British citizens who are among five men feared dead after the Titan sub suffered a “catastrophic implosion”.
The family of British billionaire Hamish Harding have described him as “a guide, an inspiration, a support and a living legend” after the company behind the voyage said those on board “have sadly been lost”.
In a statement, the 58-year-old’s relatives said they are “united in grief with the other families who have also lost their loved ones” – and he will be remembered as a loving husband and a dedicated father.
They added: “He was one of a kind and we adored him. He was a passionate explorer – whatever the terrain – who lived his life for his family, his business and for the next adventure.
“What he achieved in his lifetime was truly remarkable and if we can take any small consolation from this tragedy, it’s that we lost him doing what he loved.”
Just some of Mr Harding’s accomplishments included earning a Guinness world record for the fastest circumnavigation of the Earth via the North and South Poles by an aircraft.
The adventurer also holds the world record for the longest duration at full ocean depth by a crewed vessel, accompanied Buzz Aldrin to the South Pole, and took part in a human space flight.
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Mr Harding’s family said “he will leave a gap in our lives that can never be filled” – but added that the extensive search and rescue effort would have made him proud.
The Dawood Foundation also released a statement saying it was with great sadness they were announcing the deaths of Shahzada and Suleman Dawood – the two other British citizens onboard.