Yes, they can. However, it should be remembered that the traffic and roads conditions may be very different to what travelers are used to. It is suggested that only young tourists ride bikes in Vietnam.

Yes, there are some bars and clubs that are open very late, some open until 5:00 am the next morning. Tourists are suggested to check with their local guide on this. However, most of the pubs and bars shut down at 12:00 AM in Hanoi.

It is advisable to drink only mineral water from store-bought bottles, even in restaurants and hotel. This is because the tap water of the country is not always clean enough to drink.