When I booked my scuba diving trip to Con Dao, Vietnam, I was picturing stunning coral reefs. And don't get me wrong, they were amazing. But then I saw something on Amadive Con Dao's dive list: **A Shipwreck Dive**. My heart leaped. This was more than a standard dive; this was an adventure into the past.I'll admit, I felt nervous. Diving a wreck re