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Bai Tu Long Bay: The Complete Guide

Bai Tu Long Bay is a bay and national park that sits directly northeast of Halong Bay, and while it may be Halong’s lesser-known neighbor, it is without a doubt, equal in beauty! The Bay encompasses Bai Tu Long National Park and like Halong Bay, is an area protected by the local government on both land and sea.

Bai Tu Long Bay: The Complete Guide
  • Bai Tu Long Bay is located in the northeastern Halong bay and encompasses a total area of 158 km2.
  • It incorporates a population of about 320,000 inhabitants, residing mostly on Van Don district, Quan Lan island and Ngoc Vung Island.
  • Bai Tu Long Bay covers an area of over 1,500 square kilometers, making it one of the largest bays in Vietnam.
  • Bai Tu Long Bay is known for its stunning natural beauty, with its towering cliffs, pristine beaches, and crystal-clear waters.
  • Bai Tu Long Bay is home to a unique ecosystem, including hundreds of species of flora and fauna, and several species of endangered marine life.


In accordance with Halong legend, Halong Bay is the final home and resting place of a fierce mother dragon who was sent to help the early Vietnamese defend their country from foreign invaders. Bai Tu Long Bay is said to be the area where her children descended and remained. ‘Bai Tu Long’ translated into English, means ‘Bowing down and showing respect to the dragon's children’.

Bai Tu Long is made up of hundreds of islands and islets, some of which are well-known tourist locations, and others that are completely unknown to foreign visitors. This particular bay is home to a variety of ecosystems - visitors can find mangroves, schist islands, coral reefs, and tropical forests.

Bai Tu Long bay map (Google maps)

Visitors to Bai Tu Long will notice that the landscape is identical to that of Halong Bay, and that it is more of an extension of Halong rather than a neighbour. Just like Halong Bay, throughout Bai Tu Long there are giant limestone karsts jutting out of the tranquil green waters. However, in Bai Tu Long the karsts seem slightly taller, the concentration of them feels somewhat denser and the number of tourists are fewer. All of this adds to the wonderful feeling of being somewhere almost undiscovered, allowing visitors to truly contemplate their surroundings in peace.

Cruise Bai Tu Long bay

Cruise Bai Tu Long bay
Junk boat cruising Bai Tu Long on a beautiful day in May (Photo: Shutterstock)

The best way to explore Bai Tu Long Bay is undeniably by joining a tour in a traditional wooden junk boat. Many cruise operators will help their guests to enjoy Bai Tu Long in the best way possible, with many activities to make the most of the experience.

List of cruises visiting Bai Tu Long bay:

CruisesDeparture PortRoute
Swan Cruises Halong BayHon Gai Harbor (164km from Hanoi, 32 km from Tuan Chau)Bai Tu Long Bay - Cong Do - Cap La Island - Tra San - Thien Canh Son (Overnight onboard on Bai Tu Long Bay)
Indochina Junk (Wooden boat)Halong Cruise PortBai Tu Long Bay - Thien Canh Son cave - Vung Vieng fishing village - Yen Duc Village
Bhaya CruisesTuan Chau Cruise PortBai Tu Long Bay - Thien Canh Son - Vung Vieng fishing village

Bai Tu Long Bay is a wonderful ‘off the beaten path’ alternative to the more famous Halong Bay, and should not be overlooked by those looking for an unforgettable experience in Vietnam.

Notes: Most cruises in Bai Tu Long bay now just offer service on weekend due to the low number of visitors.

See our complete guide to the "best cruises in Bai Tu Long Bay"

Things Not to Miss

Things Not to Miss
Inside Thien Canh Son cave - The biggest cave in Bai Tu Long

Fishing Village 

While in Bai Tu Long Bay, one point of interest that you cannot miss is Vung Vieng Fishing Village. In Vung Vieng you will be immersed in local culture and learn about the fishing families who have made their homes here. The best way to explore Vung Vieng is probably by kayak. Kayaking is an easy and fun mode of transportation as the ocean is mostly very calm and serene in this area It gives you the freedom to go at your own pace.


The bay is also the location for many of Halong Bay’s famous caves - each one impressive in its own way. Exploring the caves can give an almost spiritual experience as you take in the beauty of stalactites and stalagmites that glisten in the beams of light that sometimes make their way into the caves. The most famous cave in the area is Thien Canh Son Cave which can be reached by walking through a hidden path under the dense forest canopy.


As for beaches, Bai Tu Long Bay has a wealth of options and may even overshadow Halong Bay. Most are genuinely beautiful, with glorious white sand, cool green waters and framed by those famous limestone karsts.

Ban Chan is possibly the most popular and the biggest beach in the bay. Swimming and snorkeling at Ban Chan beach are highly recommended, as Bai Tu Long has clear and clean waters and usually great visibility.

Weather & Climate

Weather & Climate
Cruising Bai Tu Long on a nice sunny day!

Bai Tu Long Bay is beautiful at any time of year (Average: 15°to 25°), but if you are looking for temperate, sunny and steady weather, the best time to go would be in early summer (January to May) and late autumn (October to November). At these times, there is more guaranteed sunshine, less rain and the weather is less unpredictable than it is from July to September, when storms are frequent.

Bai Tu Long bay weather average:

MonthsHigh / Low (°C)Rainfalls
28 mm
14 mm
68 mm
93 mm
146 mm
230 mm
248 mm
236 mm
148 mm
91 mm
48 mm
31 mm

Note: This is the actual weather data in Bai Tu Long bay in 2022. Sources: Nchmf.gov.vn

Late June to August brings many domestic tourists so be sure to factor in a slight peak in business at this time.


1. How to get to Bai Tu Long bay?

Bai Tu Long Bay is a lesser-known but equally beautiful alternative to the more popular Halong Bay, located in Quang Ninh province, Vietnam. There are several ways to get to Bai Tu Long Bay that includes:

  • By bus: From Hanoi, you can take a bus to Hon Gai Bus Station and then transfer to a smaller bus or minivan that will take you to the port where you can catch a boat to Bai Tu Long Bay.

  • By boat: There are several daily boat tours that operate from Halong Bay to Bai Tu Long Bay. These tours usually include a bus or minivan transfer from Hanoi to Halong Bay, and then a junk boat ride to Bai Tu Long Bay. This is a popular option for those who want to explore the bay but don't want to spend the night on a boat.

  • By seaplane: There are seaplane services that operate from Hanoi to Bai Tu Long Bay, which gives you a scenic view of the bay and the islands, it's a more exclusive and luxury option.

Note: While Bai Tu Long Bay is located close to Halong Bay, it is less developed and less touristic than Halong Bay, and the infrastructure is not as good. It's a great option for those looking for a more peaceful and off-the-beaten-path experience.

2. When is the best time to visit Bai Tu Long bay?

In general, the best time to visit Bai Tu Long Bay is between October and April, as the weather is mild and dry, and the visibility is good. This is the peak tourist season, hence the bay can be quite crowded and the prices for tours and accommodation can be higher. May to September is considered the low season, as the weather is hotter and more humid, and there is a higher chance of rain. The bay is less crowded during this time, therefore it's a great option for those looking for a more peaceful and less touristy experience.

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