The mysterious object was the anchor he was salvaging from the USS Powell for a Second World War memorial. The video, which has been viewed more than 200,000 times on YouTube, also has an explanation. Close examination found that it shows an encounter with a sea turtle, who mistook the camera for a meal and inadvertently switched it on. The date is January – two months after the camera was lost and Mr Shultz's best guess is that it happened off the coast of Honduras.