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Guide · The bays
Lan Ha Bay vs Ha Long Bay and Bai Tu Long: which bay to cruise
Lan Ha Bay sits off Cat Ba Island in Hai Phong, Ha Long Bay lies in Quang Ninh, and Bai Tu Long stretches further northeast. They share one karst seascape, but a cruise feels different in each.
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Editorial team, halongovernightcruise.comUpdated October 18, 20267 min read24 sources
At a glance
- 01One property
- Ha Long Bay and the Cat Ba Archipelago form one World Heritage site of 1,133 islands and islets.1
- 02Lan Ha
- Borders Cat Ba National Park to the east and southeast, in Hai Phong.2
- 03Ha Long
- The cave park of route 2 holds Sung Sot, Luon and Ti Top.3
- 05Booked cruise
- Sails Ha Long and Lan Ha, with a Cat Ba cave or kayaking at Ao Ech on day 2.
One seascape, split between a province and a city
Lan Ha Bay is the name you keep seeing on cruise listings that also say Ha Long. They are neighbors in a single World Heritage property that UNESCO lists as Ha Long Bay - Cat Ba Archipelago, with 1,133 islands and islets across Quang Ninh province and Hai Phong city.1 Ha Long Bay belongs to Quang Ninh, while Lan Ha Bay lies off Cat Ba Island and belongs to Hai Phong.
The split is more than a line on a map. Ha Long Bay is run by the Ha Long Bay Management Board, while the Cat Ba Archipelago falls under Cat Ba National Park and the Management Board of Cat Ba Bays.6 Each side sets its own visitor routes and tickets, and a cruise that crosses from one to the other passes between them without much ceremony.
The heritage listing came in steps. Ha Long Bay was first recognized as a World Heritage site in 1994 and 2000, and the Cat Ba Archipelago was added in 2023.7 The decision to join them was taken at the World Heritage Committee's 45th session on September 16, 2023.8 For a cruise passenger it means the Lan Ha side now carries the same protected status as the famous one.
What makes the Lan Ha side look different
Cat Ba Island is the largest island in the Cat Ba Archipelago, and Lan Ha Bay wraps around its eastern and southeastern shore.92 Hundreds of smaller islands in the bay form, together with neighboring Ha Long Bay, one continuous coastal karst landscape.10 From a deck you rarely notice where one bay ends and the next begins.
Up close, UNESCO describes the Cat Ba side as vegetated islands, marine lakes and limestone towers with sheer cliffs dropping into the sea.11 The larger offshore islands reach 150 to 170 meters, while smaller islets rise to about 100 meters.12 It is a vertical, enclosed landscape, with narrow passages that open into quiet pools of green water.
That shape suits small boats and paddles. Vietnam's tourism authority points kayakers to Lan Ha for its pristine lagoons and empty beaches.13 The interior of Cat Ba is also the only home of the Cat Ba langur, a critically endangered primate, so keep your voice down near the forested cliffs and you may hear more than you see.14
Side by side
Lan Ha, Ha Long and Bai Tu Long compared
| Bay | Belongs to | Known for | Example listing |
|---|---|---|---|
| Lan Ha | Hai Phong, off Cat Ba | Lagoons, beaches, kayaks | from $123 |
| Ha Long | Quang Ninh | Sung Sot, Luon, Ti Top | from $41 |
| Bai Tu Long | Northeast of Ha Long | Smaller karsts, fewer boats | from $155 |
| Ha Long and Lan Ha | Both sides | The booked balcony cruise | from $135 |
Bay facts from UNESCO, Cat Ba National Park and the tourism authority; example prices are starting prices of the listings named on this page.1213345
One cruise per bay
Pick a route by the water you want
Small group
Both bays
Quieter waterBai Tu Long cruise
Ha Long and Bai Tu Long
- Start
- Hanoi or Ninh Binh
- Rating
- 4.83
- Price
- from $155
Decision helper
Which water suits your night on board
Choose the wish that comes first for you
Lan Ha
The tourism authority's tip for kayaks.13
Ha Long
Sung Sot and Luon are on the cave park route.3
Bai Tu Long
Suggested for having the bay to yourself.4
A mixed route
The booked cruise spends its second morning in Lan Ha waters.
Lan Ha, near Cat Ba
Cat Ba is the only habitat of the Cat Ba langur.14
Cat Ba Archipelago provides spectacular views of the vegetated islands, marine lakes and limestone towers, with sheer cliffs plunging into the sea.
Ha Long Bay: the caves and the classic stops
Ha Long Bay has the sights most people picture first. Its visitor routes are numbered, and route 2, the cave park, covers Soi Sim beach, Ti Top island and a string of caves including Sung Sot, Me Cung, Bo Nau, Luon, Trong and Trinh Nu.3 When a listing names these places, you can be sure it spends real time in Ha Long Bay itself.
Sung Sot is the headline cave: the largest discovered in Ha Long Bay so far, sitting 20 meters above sea level at the top of a steep, shaded path.15 Ti Top island carries a story of its own. It is the only island in the bay named by President Ho Chi Minh, after his 1962 visit with Soviet cosmonaut Gherman Titov.16
The flip side is company. UNESCO lists rising visitor numbers and tourism development as a continuing management challenge for the property.17 The Management Board describes Ti Top Beach as one of the most visited places in the bay, busiest in the peak summer season.18 Expect other boats at these stops and plan your expectations around shared views.
Map
From Hanoi to the harbor, then out among the islands
The drive from Hanoi or Ninh Binh to Tuan Chau Marina, the three bays, and a closer look at the caves and the island the cruises stop at.
1Hanoi Old Quarter2Ninh Binh3Tuan Chau Marina4Ha Long Bay5Lan Ha Bay6Bai Tu Long Bay
7Ti Top Island8Luon Cave9Sung Sot Cave10Trinh Nu Cave11Quan Y Cave
- 1Hanoi Old Quarter
Pickup for the booked cruise is at 8:00 AM here, with drop-off around 3:00 PM on day 2.
In Google Maps ↗ - 2Ninh Binh
The second pickup point, at 7:00 AM, with drop-off around 4:00 PM.
In Google Maps ↗ - 3Tuan Chau Marina
Tuan Chau International Marina, start of route 2, the cave park; the booked cruise returns here over brunch.3
In Google Maps ↗ - 4Ha Long Bay
Part of a World Heritage property of 1,133 islands and islets.1
In Google Maps ↗ - 5Lan Ha Bay
Off the east and southeast of Cat Ba National Park; day 2 of the booked cruise can include kayaking at Ao Ech here.2
In Google Maps ↗ - 6Bai Tu Long Bay
Just northeast of Ha Long Bay, with slightly smaller karsts.45
In Google Maps ↗ - 7Ti Top Island
Named by Ho Chi Minh after his 1962 visit with cosmonaut Gherman Titov.16
In Google Maps ↗ - 8Luon Cave
A tunnel at the foot of a mountain, where visitors row boats or kayak.1920
In Google Maps ↗ - 9Sung Sot Cave
The largest cave found in Ha Long Bay so far, 20 meters above sea level.15
In Google Maps ↗ - 10Trinh Nu Cave
With Trong Cave, a popular overnight stop for cruises.21
In Google Maps ↗ - 11Quan Y Cave
On Cat Ba Island; one of the two cave options on day 2 of the booked cruise.
In Google Maps ↗
Checklist
Read the route before you compare prices
01
On the itinerary
- Which bay each day is spent in
- Named stops: Sung Sot, Ti Top, Ao Ech, Cat Ba
- Start point: the Ha Long side or Cat Ba
02
On the water
- Kayaking and swimming stops
- Group size and cabin count
- Weather rules: routes can change
Cost calculator
One night in each bay, priced for your group
Starting totals for a cruise on each kind of route.
People
Total from$246
per traveler from $123
Check availabilityfree cancellationEach total starts from the lowest per-person fare GetYourGuide lists, converted with the euro reference rate; the booking page shows the exact sum for your date and cabin.
Video
Ha Long Bay VS Lan Ha Bay - Which Should You Choose?
The clip stays off until you tap play.
Bai Tu Long: further out and calmer
If solitude is the goal, Vietnam's tourism authority suggests skipping the main bay for Bai Tu Long, just to the northeast.4 It describes the karsts there as slightly smaller than those of Ha Long and Lan Ha, with wide, unspoiled views of sea and sky.5 Think of it as the same palette painted with a lighter hand.
Fewer cruises sail there, and the listings say so in their names. A 2-day 5-star cruise pairs Halong with Bai Tu Long, starting from Hanoi or Ninh Binh, from $155 and rated 4.83 from 244 reviews. A longer 3-day stay lists Vung Vieng and Cong Do among its stops, from $291.
The trade is simple to describe. You give up Sung Sot and Ti Top, which many travelers count as the core of a first visit, and gain a quieter horizon. If you have already seen the cave park, or if you are back for a second trip, Bai Tu Long makes a fresh choice rather than a lesser one.
How the listings mix the bays
Most overnight listings do not stay in one bay. The tourism authority notes that premium operators now chart courses through Lan Ha or Bai Tu Long for a fraction of the boat traffic in the main bay.22 A typical program starts from the Ha Long side and spends its second morning around Cat Ba.
The booked cruise follows that pattern. Its title names both Ha Long and Lan Ha, and its day 2 offers either Trung Trang Cave or Quan Y Cave on Cat Ba Island, or kayaking and swimming in the Ao Ech area of Lan Ha Bay, before brunch on the way back to Tuan Chau Marina. It costs from $135 with a balcony cabin and a bathtub.
Some listings start on Cat Ba instead. The 2-day Lan Ha Bay cruise with meals and activities is filed under Cat Ba Island and keeps groups to 15, from $123. Read the start point closely: a cruise that begins on Cat Ba may leave the ride from Hanoi to you, and the Ha Long Bay vs Lan Ha Bay cruise choice then also becomes a choice of harbor.
Choosing your bay in practice
For a first cruise with one night, a mixed route gives you a little of everything: the Ha Long side on the way out and the Lan Ha lagoons on the second morning. That is the shape of the booked cruise, and of its sister listing, which offers kayaking in Ao Ech or a visit to Quan Y Cave on Cat Ba Island.
If caves and famous viewpoints top your list, choose a program that names Sung Sot, Luon or Ti Top. A day cruise that stops at all three can be added on another day, from $41. If paddling matters most, a route through Lan Ha gives the lagoons the tourism authority recommends for kayaks.13
And if you want the quietest water, look at Bai Tu Long programs, accepting a smaller choice of boats and dates. Whichever bay you pick, the rules on board are the same: no waste over the side, and boats booked through the official ports rather than from touts on the street.2324 The scenery is shared; only the crowds and the stops change.
What stays the same whichever water you choose
Some things do not change when you cross from Quang Ninh into Hai Phong waters. The rock is the same limestone, the boats look much alike, and the rhythm of an overnight trip follows a familiar pattern: an afternoon of cruising, a quiet evening at anchor, an early start on deck and a slow return toward the harbor. The bays differ in detail, not in kind. Pack for that rhythm, not for a particular bay.
The weather is shared too. Mornings can bring a soft haze that flattens the islands into grey silhouettes, and clear afternoons turn the water a deep green. Neither bay can promise one or the other on a given date, and a route that suits calm water may be shortened when the wind picks up. Treat the itinerary as a plan rather than a guarantee. Your crew will make the call on the day.
Most of all, the care asked of visitors is the same everywhere in the property. Leave caves as you found them, keep plastic and food scraps on board, and give fishing boats and farms a wide berth when you paddle. The karst has taken a very long time to form, and the people who live and work among the islands share it with every cruise that passes through. A little restraint keeps it that way.
Plan your night
Two days among the karsts, one night aboard
Keep a balcony cabin on hold, settle the bill later, and change your mind until the day before.
You ask,we answer.
Is Lan Ha part of Ha Long Bay?
A neighbor in the same heritage site. Ha Long Bay and the Cat Ba Archipelago, where Lan Ha lies, form one World Heritage property.1
Which province is each bay in?
Quang Ninh and Hai Phong. Ha Long Bay is in Quang Ninh province; the Cat Ba Archipelago is in Hai Phong city.1
Is Lan Ha good for kayaking?
Yes, for lagoons and beaches. Vietnam's tourism authority points kayakers to its pristine lagoons and empty beaches.13
Does the booked cruise go to Lan Ha?
Yes, on day 2. Day 2 offers a cave on Cat Ba Island or kayaking in the Ao Ech area of Lan Ha.
Where is Bai Tu Long?
Just northeast of Ha Long. The tourism authority places it northeast of the main bay, with slightly smaller karsts.45
When was the Cat Ba side added to the heritage site?
In 2023. The Cat Ba Archipelago was added to the property through a boundary modification in 2023.7
Where are the famous caves?
In Ha Long Bay, on route 2. Sung Sot, Luon, Trong and Trinh Nu are on the cave park route of the Management Board.3
Sources
Where the information comes from
- 1UNESCO World Heritage CentreHa Long Bay - Cat Ba Archipelago↩
- 2Cat Ba National Park (People's Committee of Hai Phong City)Overview of Cat Ba National Park↩
- 3Ha Long Bay Management BoardEntrance fee for visiting Ha Long bay↩
- 4Vietnam National Authority of Tourism (vietnam.travel)Great ways to see the Gulf of Tonkin↩
- 5Vietnam National Authority of Tourism (vietnam.travel)Great ways to see the Gulf of Tonkin↩
- 6UNESCO World Heritage CentreHa Long Bay - Cat Ba Archipelago↩
- 7UNESCO World Heritage CentreHa Long Bay - Cat Ba Archipelago↩
- 8Cat Ba National Park (People's Committee of Hai Phong City)Overview of the World Natural Heritage↩
- 9Cat Ba National Park (People's Committee of Hai Phong City)Overview of Cat Ba National Park↩
- 10Cat Ba National Park (People's Committee of Hai Phong City)Overview of the World Natural Heritage↩
- 11UNESCO World Heritage CentreHa Long Bay - Cat Ba Archipelago↩
- 12Cat Ba National Park (People's Committee of Hai Phong City)Overview of the World Natural Heritage↩
- 13Vietnam National Authority of Tourism (vietnam.travel)Great ways to see the Gulf of Tonkin↩
- 14Cat Ba National Park (People's Committee of Hai Phong City)Ha Long Bay - Cat Ba Archipelago: A Symphony of Stone, Water, and Biodiversity↩
- 15Ha Long Bay Management BoardHa Long Bay Itinerary 2↩
- 16Ha Long Bay Management BoardHa Long Bay Itinerary 2↩
- 17UNESCO World Heritage CentreHa Long Bay - Cat Ba Archipelago↩
- 18Ha Long Bay Management BoardStepping Up Inspections to Ensure Quality Tourist Services on Ha Long Bay During Peak Season↩
- 19Ha Long Bay Management BoardHa Long Bay Itinerary 2↩
- 20Ha Long Bay Management BoardHa Long Bay Itinerary 2↩
- 21Ha Long Bay Management BoardHa Long Bay Itinerary 2↩
- 22Vietnam National Authority of Tourism (vietnam.travel)Overnight cruises in Ha Long Bay: A luxury summer experience↩
- 23Ha Long Bay Management BoardNote when visiting Ha Long Bay↩
- 24Ha Long Bay Management BoardNote when visiting Ha Long Bay↩
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