25% deposit
Bai Chay, Vietnam
Atv or quad tour
Halong Bay Day Tour with Expressway,Cave,Island,Beach from Hanoi
- 9 hours
- Food on board
- Swim stop
From€43
Reserve for €10.66 then €31.99 before your trip
🇻🇳 Vietnam 20.96° N, 107.03° E
Underground tours in Bai Chay
33 underground tours to compare and book, from €43
All underground tours in Bai Chay
25% deposit
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Luxury Halong Day Trip with Limousine Bus Roundtrip By Expressway
- 9 hours
- Food on board
- Sunset sail
From€49
Reserve for €12.22 then €36.64 before your trip
25% deposit
Bai Chay, Vietnam
Adventure
Premium Halong Bay Day Trip by 5-Star Cruise from Harbor
- 6 hours
- Food on board
- Swim stop
From€49
Reserve for €12.22 then €36.64 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Luxury Ha Long Bay Symphony Day Cruise from Habour with Lunch
- 7 hours
- Food on board
- Swim stop
From€62
Reserve for €15.33 then €45.97 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
La Casta Cruise - Luxury Day Tour in Halong Bay (Expressway- Limousine)
- 9 hours and 30 minutes
- Food on board
- Sunset sail
From€64
Reserve for €15.77 then €47.31 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
La Casta Daily Cruise - Luxury 5 Star Day Tour in Ha Long Bay
- 9 hours and 30 minutes
- Food on board
- Swim stop
From€67
Reserve for €16.66 then €49.97 before your trip
25% deposit
Bai Chay, Vietnam
Kayaking
Sea Octopus President Cruise Explore The Heritage Halong Bay
- 7 hours
- Food on board
- Swim stop
From€67
Reserve for €16.66 then €49.97 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Day Trip to Bai Tu Long Bay: Uncover Hidden Gems and Explore Cave
- 5 hours and 30 minutes
- Food on board
From€71
Reserve for €17.55 then €52.63 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Premium 5 Star Day Cruise Discover the beauty Halong- Lan Ha Bay
- 6 hours
- Food on board
- Swim stop
From€89
Reserve for €22.21 then €66.63 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Ambassador Cruise The Largest Day Cruise in Halong Bay
- 9 hours and 30 minutes
- Food on board
- Hotel pick-up
From€94
Reserve for €23.32 then €69.96 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
La Casta Cruise - Halong Bay Luxury Day Tour
- 9 hours and 30 minutes
- Food on board
- Sunset sail
From€94
Reserve for €23.32 then €69.96 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Bai Tu Long Bay Off-The-Beaten-Track Cruise on Boutique Boat 2D1N
- 2 days
- Food on board
- Sunset sail
From€200
Reserve for €49.97 then €149.91 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Starlight Luxury Overnight Cruise 2 Days 1 Night Tour
- 2 days
- Food on board
- Swim stop
From€222
Reserve for €55.30 then €165.90 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Renea Cruise - Boutique Overnight Cruise in Bai Tu Long Bay(2D1N)
- 2 days
- Food on board
- Sunset sail
From€242
Reserve for €60.43 then €181.28 before your trip
25% deposit
Bai Chay, Vietnam
Adventure
Lan Ha Gateway 2 Days 1 Night by Sea Coral Cruise
- 2 days
- Food on board
- Swim stop
From€249
Reserve for €62.19 then €186.55 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Swan Cruise - Bai Tu Long Bay Off-The-Beaten-Track 2 Days 1 Night
- 2 days
- Food on board
- Sunset sail
From€249
Reserve for €62.19 then €186.55 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
5 Star Amanda Cruise - Luxury Overnight Cruise Halong Bay (2D1N)
- 2 days
- Food on board
- Swim stop
From€254
Reserve for €63.30 then €189.88 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Private Canoe Adventure: Discover the Best of Halong & Lan Ha Bay
- 3 hours
- Swim stop
- Private boat
From€258
Reserve for €64.41 then €193.21 before your trip
25% deposit
Bai Chay, Vietnam
Adventure
Private Canoe Discover the Best of Halong- Lan Ha Bay from Harbor
- 2 hours
- Swim stop
- Private boat
From€258
Reserve for €64.41 then €193.21 before your trip
25% deposit
Bai Chay, Vietnam
Atv or quad tour
Signature Cruises Explore Bai Tu Long Bay, Less Tourist Area 2D1N
- 2 days
- Food on board
- Sunset sail
From€293
Reserve for €73.06 then €219.19 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Verdure Lotus Grandeur Cruise 5 Star Halong Bay 2 Days 1 Night
- 2 days
- Food on board
From€293
Reserve for €73.07 then €219.20 before your trip
25% deposit
Bai Chay, Vietnam
Kayaking
Ha Long and Lan Ha Bays 2-Day Cruise with Meals and Activities
- 2 days
- Food on board
- Swim stop
From€328
Reserve for €81.95 then €245.85 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
Halong Aquamarine Cruise Luxury 2 Days 1 Night Tour on Bay
- 2 days
- Food on board
- Swim stop
From€329
Reserve for €82.05 then €246.16 before your trip
25% deposit
Bai Chay, Vietnam
Cultural and theme tours
2-Day 5-Star Cruise in Halong & Lan Ha Bay from Halong Port
- 2 days
- Food on board
- Swim stop
From€356
Reserve for €88.84 then €266.50 before your tripNo boat trips match these filters. Try another destination or a different length.
About underground tours in Bai Chay
There are 33 underground tours to book in Bai Chay, from €43.
Underground tours in Bai Chay offer an exciting way to explore the stunning scenery of Halong Bay. With a variety of boat parties available, you can discover the hidden beauty of this UNESCO World Heritage site while enjoying a unique experience on the water.
- 33 underground tours
- €43 lowest price
- 20.96° N, 107.03° E on the map
What’s on board in Bai Chay
- Food on board 30 of 33 trips
- Hotel pick-up 18 of 33 trips
- Swim stop 17 of 33 trips
- Sunset sail 15 of 33 trips
- Private boat 3 of 33 trips
- Live DJ 1 of 33 trips
- Most trips last7–48 hours
- Crews speakEnglish, Vietnamese
More trip types in Bai Chay
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Water in Bai Chay
79 -
Kayaking in Bai Chay
78 -
Nature in Bai Chay
60 -
Atv or quad tours in Bai Chay
35 -
Walking tours in Bai Chay
35 -
Bus or minivan tours in Bai Chay
26 -
Cultural and theme tours in Bai Chay
23 -
Day trips and excursions in Bai Chay
22 -
Hiking in Bai Chay
17 -
Adventure in Bai Chay
12 -
Surfing in Bai Chay
7 -
Shore excursions in Bai Chay
6 -
Bike tours in Bai Chay
4 -
Mountain bike in Bai Chay
4
Underground tours in Bai Chay: frequently asked questions
What are the best underground tours in Bai Chay?
Popular choices are 2-Day 5-Star Cruise in Halong & Lan Ha Bay from Halong Port, 2-Day 6-Star Calista Cruise Discover Halong Bay from Halong Port and 5 Star Amanda Cruise - Luxury Overnight Cruise Halong Bay (2D1N). Each boat trip page shows what’s included, the duration and live availability.
How much do underground tours in Bai Chay cost?
Prices start from €43. There are 33 underground tours to choose from, and the final price depends on the date, the option you choose and how many of you are coming.
How long do underground tours in Bai Chay take?
From 2 hours for the shortest to 2 days for the longest, so you can fit one into a free morning or plan a full day.
Where is Bai Chay?
Bai Chay is in Vietnam. Its map position is 20.96° N, 107.03° E.
What kinds of underground tours are there in Bai Chay?
You can book kayaking (33), luxury and special occasions (33), sailing or boat tours (33), underground tours (33) and water (33).
Are there private boat trips in Bai Chay?
Yes, 3 boat trips here are private, just for your group.
Do any boat trips in Bai Chay include hotel pick-up?
Yes, 18 boat trips offer hotel pick-up. Choose it and enter your hotel when you book.
What is the cheapest of the underground tours in Bai Chay?
Halong Bay Day Tour with Expressway,Cave,Island,Beach from Hanoi, from €43.
Which of the underground tours in Bai Chay are best rated?
Bai Tu Long Bay Off-The-Beaten-Track Cruise on Boutique Boat 2D1N is rated 4.5 out of 5 from 606 reviews.
Can I cancel underground tours in Bai Chay?
Cancellation rules depend on the boat trip. 14 boat trips here offer free cancellation; each boat trip page shows its own rules before you pay.
How do I book underground tours in Bai Chay?
Open the boat trip you like, check the calendar for live availability, pick your date and how many of you are coming, and pay securely online. Your confirmation and tickets arrive by email within minutes.
What to expect on underground tours in Bai Chay
When you embark on underground tours in Bai Chay, you can look forward to a range of experiences tailored to different tastes. From luxurious overnight cruises to thrilling day tours, each boat party offers a unique perspective of Halong Bay's stunning limestone islands and caves. For example, the 2-Day 6-Star Calista Cruise provides an immersive experience with high-end amenities, while the Halong Bay Day Tour offers a more budget-friendly option for those looking to explore in a single day. Expect guided visits to iconic spots like Sung Sot Cave and relax on the deck as you take in the breathtaking views.
Best time for underground tours in Bai Chay
The ideal time for underground tours in Bai Chay is from October to April, when the weather is cooler and drier. This period is perfect for outdoor activities and ensures clear skies for stunning views of the bay. During the summer months, while the weather is warmer, it can be quite humid, and you might encounter occasional rain. If you prefer a quieter experience, consider visiting during the shoulder seasons of early spring or late autumn.
How to choose the right boat party
Choosing the right boat party for your underground tours in Bai Chay depends on your preferences and budget. For those seeking luxury, the Catherine Cruises 2D1N Ha Long Bay 6-Star Luxury Tour offers opulent accommodations and exquisite dining options. If you're looking for a more adventurous experience, the Private Canoe Adventure allows you to explore Halong and Lan Ha Bay at your own pace. Families may enjoy the Best Seller Halong Full Day Tour, which includes activities suitable for all ages. Be sure to consider the duration of the tour and any additional amenities offered when making your decision.