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 I saw something on Amadive Con Dao's itinerary: **A Shipwreck Dive**. My pulse leaped. This was more than a standard dive; this was an journey into the past.I'll admit, I was a bit nervous. Wreck diving is ser