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
For more than four decades, world-renowned diver and treasure hunter Captain Robert MacKinnon has reclaimed sunken caches from the dangerous shallow waters alon
NEW YORK TIMES BESTSELLER • NAMED ONE OF THE BEST BOOKS OF THE YEAR BY CHICAGO TRIBUNE • A thrilling adventure of danger and deep-sea diving, historic myste