I want to travel to Vietnam on May Day. Are there any ferries, yachts and buses from Da Nang to Longwan? It is best to give the frequency, price and duration!

I just got back from Vietnam. The bus from Da Nang to Hanoi is a sleeper, and the price is about $30. Sleep for one night to Hanoi, and it takes 4 hours from Hanoi to Halong Bay, so you can go in a package tour. It seems that few buses go alone. That's how we left. One day in Halong Bay is enough. If you take a package tour, it will cost about 40 dollars per person. I hope this information can help you.