Getting Between Stops
Hanoi to the Ha Long Bay cruise ports takes about two and a half to three hours by expressway. Almost every cruise includes a shuttle or offers a private car. After the cruise, the same car can take you straight to Noi Bai airport.
Hanoi to Da Nang is a little over an hour by air, with many flights a day on Vietnam Airlines and other carriers. Book an evening flight on the day your cruise ends, leaving plenty of time for the drive. Da Nang airport to Hoi An is about 45 minutes by car.
In Hanoi, walk the Old Quarter and French Quarter and use Grab cars for longer rides. In Hoi An, borrow bikes from your hotel. The beaches are 10 to 15 minutes by bike. For My Son or the Hai Van Pass, hire a car with a driver for the day.
Where to Stay
In Hanoi, the Sofitel Legend Metropole, open since 1901, is the classic honeymoon choice, with a colonial wing, a courtyard pool and a wartime bomb shelter guests can tour. Boutique hotels around the Old Quarter are good value. Ask for a room away from the street.
In Ha Long Bay, the boat is the hotel. Heritage Cruises Binh Chuan is the more intimate choice, with twenty balcony suites. Paradise Grand Cruise is larger and more polished, with a spa. Both spend the night in Lan Ha Bay. Elsewhere, look for fewer than 25 cabins and a private balcony.
In Hoi An, Anantara Hoi An Resort sits on the riverbank at the edge of the old town, a short walk from the lanterns. Four Seasons Resort The Nam Hai, about 15 minutes north on Ha My beach, has villas with private pools. Many couples split their five nights between the two.
When to Go
March and April are the best months for this route. Hanoi is mild, Ha Long Bay has clearer skies and calm seas and Hoi An is dry and warm, with cooler evenings and green rice fields. Late February and May are close behind.
Summer is hot and humid in Hanoi, with heavy downpours. Hoi An stays dry and the sea is calm, but Ha Long Bay enters storm season, when authorities can order boats to stay in port. Keep a spare day after the cruise if you go then.
October and November are the wettest months in Hoi An, with river flooding in the old town. December and January bring cool, gray weather in the north and drizzle in the center. Tet, the Lunar New Year in late January or February, closes many family-run restaurants.
Budget and Booking
Plan on roughly $250–800 a night for two across good hotels and a small luxury cruise. Hanoi's boutique hotels are good value and the Metropole sits at the top. Cruise prices track closely with cabin size and route. Four Seasons villas run higher. All figures are approximate.
Book the cruise first, since the best small ships fill early in spring. Then book Hoi An, especially if your dates fall on a full moon.
Other costs include the Hanoi to Da Nang flight, a scooter food tour, the water puppet show, a cooking class, My Son tickets and tailoring. Street food in Hanoi and Hoi An is excellent and very cheap, which leaves room for a splurge dinner at the end.
Make It Shorter or Longer
For a week, cut Hanoi to two nights, keep the cruise and spend four nights in Hoi An.
With two weeks, add a second night on the cruise to reach farther corners of the bay. Or continue from Ha Long by car to Ninh Binh, about three hours, for two nights among rice fields and limestone on land before flying south from Hanoi.
Couples who want a true island finale can add four nights on Phu Quoc after Hoi An. Flights link Da Nang with the island, directly on some routes or through Ho Chi Minh City. Phu Quoc's dry season runs from about November to April. You could also add Hue, about two hours north of Hoi An over the Hai Van Pass, for imperial tombs and the citadel.
Honeymoon Tips
Crossing the street in Hanoi takes nerve. Walk at a steady pace and do not stop suddenly. Use Grab cars late at night.
On the cruise, pack a light layer for evenings on deck and a swimsuit for kayaking. Buy travel insurance that covers weather cancellations if you go in summer or early autumn.
In Hoi An, order tailored clothes early to allow time for a second fitting. Agree on prices before work begins.
Cover shoulders and knees for both of you at temples and pagodas. Dengue is present in Vietnam, so use repellent at dawn and dusk. If you're pregnant or hoping to be soon, check CDC travel health notices for Vietnam before booking. Entry and visa rules depend on your citizenship and can change at short notice, so check the official government website before you book.