For more than four decades, world-renowned diver and treasure hunter Captain Robert MacKinnon has reclaimed sunken caches from the dangerous shallow waters alon

The vast hidden world of sunken treasure. With less than 2% of the world's ocean depths explored to date, a myriad of unimagined mysteries and treasures await d

"By the eighteenth and nineteenth centuries, treasure hunting had become a professional occupation, with a new breed of diver emerging. Much of their time was s