We only have time and $ enough in our budget to go to either Phu Quoc or Halong Bay. We've never been to Vietnam but we did 3 weeks island hopping in Thailand and the scenery in Halong Bay looks alot like that. But we've been told by the local company putting our itinerary together that Halong is a must see. We prefer off the beaten path places on our vacation and from the sounds of it everyone goes to Halong Bay. Any suggestions?