Ha Long Bay is one of the seven natural wonders in the world. It is located in Ha Long city, Quang Ninh province in the north of Vietnam. It is about 200 kilometers from Hanoi to Ha Long city. Therefore you spend 4 hours on travelling there by car. If budget is not a problem, an hour-long helicopter transfer is also available. The ideal season to visit Ha Long Bay is summer when the weather is warm and sunny. There are lots of beautiful caves and islands in Ha Long, so you must take a boat trip and go sightseeing. You can do water sports here like swimming, sailing, and windsurfing. Moreover, the seafood is really fresh and delicious, you must try at least once, especially grilled squid. To sum up, Ha Long Bay is an ideal place to relax after hard-working days.