The disappearance of the submersible en route to the wreck of the Titanic has highlighted the businesses that offer extreme expeditions – and their clienteles.
Among the five people on the missing Titan submersible are two billionaires – Hamish Harding, a 58-year-old businessman who made his fortune selling private jets and holds three Guinness world records for previous extremetrips, and the British-based Pakistani businessman Shahzada Dawood, 48, who is onboard with his 19-year-old son Suleman.