Great news for all Hong Kong citizens is that if they travelling direct to Phu Quoc island, they will not need a Vietnam visa. In case they wish to visit other destinations following Phu Quoc, a Vietnam visa is required. And in this case, they only need to contact the Immigration Department there and will get the visa issued right on the spot.
For a long time, Vietnam has been known for a country rich in traditional festivals. They are not focused on 1 or 2 months only but taking place throughout the year. And if you want to join a few of them in this February, the following list may be of some help.