Hạ Long Bay

A day cruise of four to six hours from Tuần Châu or Bãi Cháy covers one official route, typically Route 1 (Đầu Gỗ, Thiên Cung and the Fighting Cocks) or Route 2 (Ti Tốp, Sửng Sốt and Luồn). Combined with the road trip, it makes a very long day from Hanoi: around five hours on the road and a few hours on the water. It suits those short of time, but the boat is in the busiest part of the bay at the busiest hours.

An overnight cruise of two days and one night, or three days and two nights, is the classic way to see the bay. You sleep aboard at a designated anchorage, wake to the islands at dawn, and usually get kayaking, a cave visit, a swim and a cooking demonstration. Many overnight boats now head for Lan Hạ or Bái Tử Long, which are quieter, so check the itinerary rather than assuming the famous caves are included.

The bay's sightseeing routes are set by Quảng Ninh province and fees are charged per person per route. In 2025 the long-standing Routes 1 to 5 were renamed VHL1 to VHL5, with fees unchanged, and three new routes were added: VHL6, linking the bay to Lan Hạ via the Cặp Bài area; VHL7, combining the first four routes in one ticket; and VHL8, a shorter trip from the ports. Fees are usually built into a cruise price; if booking a boat yourself, ask which route ticket is included.

When comparing operators, look past the photos. Check that the vessel is licensed and recent, that life jackets are provided in every cabin, that kayaking is supervised, and that the itinerary lists specific caves, villages or bays. The cheapest trips often cram in shopping stops and spend more time in transit.

The bay is open all year, but conditions change sharply with the seasons. October and November, and March to May, usually bring the best mix of calm seas, mild temperatures and decent visibility. December to February is dry but cool, often around 15°C, with grey skies and mist that can soften the views; overnight cabins are heated on better boats. Spring brings sea fog on some mornings.

June to September is hot, humid and wet, and the core typhoon season, roughly July to October, can bring storms at short notice. The harbour authorities suspend sailings when a storm or strong winds are forecast, and cruises are cancelled or shortened; that is a rule to welcome, not resent. In July 2025 a tourist boat capsized in a sudden thunderstorm, killing dozens of people, which led to closer scrutiny of weather warnings. Build a spare day into your trip in summer and autumn, and check your operator's cancellation terms.

Weekends and Vietnamese holidays, especially the summer school break and Tết, are much busier and pricier.

From Hanoi: the expressway via Hải Phòng has cut the drive to Hạ Long to about two and a half hours. Most cruises include a shared shuttle or limousine van from the Old Quarter; otherwise, buses leave from Hanoi's bus stations, and private cars are easy to book. Vân Đồn International Airport, north-east of the city, has domestic flights and is about an hour's drive from Bãi Cháy.

On the water: you cannot simply hire a boat and wander; all tourist vessels follow registered routes from Tuần Châu marina or the cruise ports in Bãi Cháy. Day boats can be booked at the ports, but agencies and cruise companies handle most bookings.

To Cát Bà: a car ferry crosses from Tuần Châu to Gia Luận in the north of Cát Bà Island, and a road runs south to Cát Bà town. From Hải Phòng, ferries and a cable car link the mainland to the island, and combined bus-and-boat tickets run from Hanoi. On the island, scooters and taxis are easy to hire; boats to Lan Hạ leave from the harbour at Bến Bèo, just outside town.

In town: ride-hailing apps work in Hạ Long, and taxis are plentiful. The cable car is a fun way to cross the strait.

The name Hạ Long means "descending dragon". In the best-known version of the story, when Vietnam was threatened by invaders from the sea, the Jade Emperor sent a mother dragon and her children to help. They spat out jewels and pearls that turned into a wall of islands, wrecking the enemy fleet, and then stayed on, enchanted by the place. The mother rested where Hạ Long Bay lies, her children bowed at Bái Tử Long ("bowing dragon children"), and the tail lashed the sea at Bạch Long Vĩ, an island far out in the gulf.

History echoes the myth. The Bạch Đằng River, which enters the sea at the bay's western edge, saw three great naval victories over invading Chinese and Mongol fleets, in 938, 981 and 1288, each won partly by planting stakes in the riverbed that impaled ships at low tide. Long before that, the caves sheltered prehistoric people, whose shell heaps and tools give their name to the Hạ Long culture. Under French rule the area became a coal-mining centre, and Hòn Gai's mines still shape the landscape to the east of the city.

Seafood is the reason to eat here. Chả mực, fried squid cakes pounded by hand, are Hạ Long's signature and are often eaten with sticky rice or noodles. Look also for steamed or grilled clams, crab, prawns and sá sùng, a peanut worm that is dried and used to sweeten broths. Restaurants on the Bãi Cháy and Hòn Gai waterfronts let you choose your seafood from tanks; agree the weight and price before it goes to the kitchen.

On Cát Bà, try fresh fish and squid at the harbour stalls, and noodle soups with seafood. Most cruises include all meals, usually a set menu of Vietnamese dishes with plenty of seafood; let the operator know in advance about allergies or vegetarian needs. Drinks on board are usually charged separately and can be expensive.

Mass tourism has put real pressure on the bay. The province has banned single-use plastics on tourist boats and replaced old foam floats on fish farms, but rubbish still washes into coves. Take a refillable bottle, refuse plastic straws and bags, and never throw anything overboard.

Stay on marked paths in caves and do not touch the formations, which are damaged by skin oils and take thousands of years to grow. Kayak and swim only where permitted, give the macaques a wide berth and never feed them, and choose operators that employ local rowers and guides. In the national park, keep to the trails and keep noise down; the langurs are extremely rare and easily disturbed.

• Check the weather and any storm warnings the day before you sail; boats can be held in port at short notice.
• Bring cash in Vietnamese đồng for tips, rowing-boat rides, drinks and small entry fees, especially on Cát Bà.
• Pack sun protection, a hat, a light rain jacket and shoes with grip for cave steps.
• Read reviews and confirm exactly which route, caves and bay an overnight cruise visits.
• Life jackets must be worn on small boats and kayaks; ask for one if it is not offered.
• Hạ Long is easily combined with Hanoi before or after; the mountains of Sa Pa lie in the opposite direction, so allow a night in Hanoi between them.
• Administrative names in the area changed with Vietnam's 2025 local-government reforms; signs and maps may show both old and new names.