We are planning on a Hanoi adventure. Will arrive in Hanoi on March 31 (morning) and needs to depart Hanoi on April 2 (1:00AM). We want to see Halong Bay and some places in Hanoi. Can help the best Itinerary. We are thinking of 1 day Halong Bay tour and anther 1 day tour in Hanoi. Appreciate your help.