Lan Ha Bay · Ha Long · Vietnam
A 6-star voyage through Lan Ha Bay
Fifty-six balcony suites, a pool facing the karsts and the quiet side of Ha Long Bay — aboard a ship launched in October 2025.
Damen double hullClassed VR-SI
The ship
Built for the bay, made for calm
Diana was delivered in October 2025 on a double hull from the Damen yard and is classed VR-SI for two-metre seas and force-eight wind — which in Ha Long means she keeps her schedule when lighter boats do not.
Ninety-five metres long, she carries fifty-six suites across three accommodation decks, with four more decks of public space above: restaurant, lounge, pool, spa, gym, golf and an open rooftop. Every suite has a private balcony and Starlink internet. There is no inside cabin on this ship.
- 95.1mLength, 15.5 m beam
- 56Balcony suites
- 168Guests at most
- 6+1Decks
- 2025Launched in October
Accommodation
Seven ways to stay, every one with a view
From the Junior Suite to the two 55 m² suites at bow and stern — each with a private balcony or terrace, a bathtub and Starlink Wi-Fi.
Junior Suite
A long private balcony, panoramic windows and a king bed facing the bay.
Royal Family Suite
Two bedrooms and an extra-large balcony for families and friends.
Sister ships
A product of VietBay Group
Diana and Venus — two ships from the same family, one standard of service.
Diana Cruises — 6 Star
Diana
6-Star Cruise
Launched in October 2025. Ninety-five metres, seven decks and fifty-six balcony cabins, built on a Damen double hull and sailing Tuan Chau to Lan Ha Bay.
- 56 balcony cabins · 168 guests
- 95.1 m · 7 decks · 2 lifts
- Tuan Chau — Lan Ha Bay
Venus Cruise — 5 Star
Venus
5-Star Cruise
The warmer, quieter sister ship. Four suite categories — Senior, Executive, Family and Pearl — with a restaurant, spa and lounge overlooking the bay.
- 4 suite categories
- Restaurant · Spa · Lounge
- Ha Long — Lan Ha Bay
On board
Seven decks of space
Four decks of public space above three decks of suites — so there is always somewhere quiet to be.
A pool facing the karsts
An open-air pool with loungers, so the bay is always in view.
Dining with a full-beam view
Lunch as you sail out, a signature seafood dinner and brunch before you disembark.
The highest seats on board
Panoramic windows, deep sofas and the best of the sunset.
Treatments at sea
Treatment rooms, and a herbal foot soak offered to every suite.
A putting green on the bow
A golf practice green at the front of the ship, and a fitness room with a view.
Tai Chi at sunrise, cocktails at sunset
Shaded lounge seating and an open deck for the best light of the day.
The journey
Two ways to sail Lan Ha Bay
An overnight voyage into the heart of Lan Ha Bay: Bright Cave by bamboo boat or kayak, a swim at Tra Bau, a sunset pool party, a cooking class and Tai Chi at sunrise.
Day 1
Hanoi – Tuan Chau – Bright Cave – Lan Ha Bay
Meals: Lunch, dinner
- Pick-up from your hotel in Hanoi Old Quarter
- Arrive at Tuan Chau Harbour
- Welcome aboard
- Lunch on the 4th deck
- Cruising Lan Ha Bay
- Bright Cave by bamboo boat or kayak
- Swimming at Tra Bau
- Happy hour & pool party on the sundeck
- Sunset party & tea break on the 5th deck
- Cooking class with our chef
- Signature dinner
- Evening on board
Day 2
Lan Ha Bay – Tuan Chau – Hanoi
Meals: Light breakfast, brunch
- Tai Chi on the sundeck
- Light breakfast in the restaurant
- Tea ceremony
- Check-out
- Brunch on the 4th deck
- Disembark at Tuan Chau
- Transfer back to Hanoi
- Arrive in Hanoi
A deeper voyage: everything in the overnight cruise, plus a day boat through hidden islets, a cycle to Viet Hai village inside Cat Ba National Park and kayaking at Ba Trai Dao.
Day 1
Hanoi – Tuan Chau – Lan Ha Bay – Bright Cave
Meals: Lunch, dinner
- Pick-up from your hotel in Hanoi Old Quarter
- Arrive at Tuan Chau Harbour
- Welcome aboard
- Lunch on the 4th deck
- Cruising Lan Ha Bay
- Bright Cave by bamboo boat or kayak
- Swimming at Tra Bau
- Happy hour & pool party on the sundeck
- Sunset party & tea break on the 5th deck
- Cooking class with our chef
- Signature dinner
- Evening on board
Day 2
Viet Hai Village – Ba Trai Dao – On board
Meals: Light breakfast, lunch, dinner
- Tai Chi on the sundeck
- Light breakfast
- Day boat to Viet Hai
- Cycling to Viet Hai village
- Lunch at a local restaurant in the village
- Kayaking and swimming at Ba Trai Dao
- Back to the day boat
- Return to Diana
- Happy hour with sunset views
- Cooking demonstration
- Dinner
- Evening on board
Day 3
Lan Ha Bay – Tuan Chau – Hanoi
Meals: Light breakfast, brunch
- Tai Chi on the 5th-deck sundeck
- Light breakfast in the restaurant
- Tea ceremony
- Check-out
- Brunch on the 4th deck
- Disembark at Tuan Chau Harbour
- Limousine back to Hanoi
- Arrive in Hanoi
Charter & MICE
The whole ship, for your group
Up to 168 guests, a 130-seat restaurant, an open sundeck for gala dinners and a rooftop for cocktails — Diana hosts incentive trips, conferences and private celebrations on the bay, with sound, lighting and stage set-ups on board.
Guest reviews
In our guests’ words
4.8out of 5 · over 800 reviews on Tripadvisor
A truly unforgettable journey. The cabins were spotless, the food was exquisite, and every crew member went out of their way to make us feel at home. Can’t wait to return!
From sunrise Tai Chi to sunset cocktails, everything was perfect. The staff were warm, attentive, and made every moment special. The scenery was simply magical.
We loved the kayaking and swimming stops, and the cooking class was a highlight. The service on board was exceptional, and the atmosphere so relaxing.
The itinerary was well-paced, the cabins comfortable, and the views breathtaking. The crew’s friendliness and professionalism made the trip even better.
Gallery
Diana in pictures
Good to know
Diana Cruises in brief
What is Diana Cruises?
Diana is a six-star cruise ship launched in October 2025, sailing from Tuan Chau Harbour in Ha Long into Lan Ha Bay. She is 95.1 metres long, with seven decks, 56 balcony suites and room for up to 168 guests. Diana is a VietBay Group ship; her sister ship is the five-star Venus Cruise.
Is dianacruises.com the official website of Diana Cruises?
Yes. dianacruises.com is the official website of Diana Cruises: booking here gives you live availability and our direct rates, with confirmation by email. Our reservations team is on +84 816 361 897 and ota@dianacruises.com.
Which cruises does Diana offer?
Two itineraries from Tuan Chau: 2 days / 1 night, with Bright Cave by kayak or bamboo boat, a swim at Tra Bau, a cooking class and sunrise Tai Chi; and 3 days / 2 nights, which adds a day boat, a cycle to Viet Hai village in Cat Ba National Park and kayaking at Ba Trai Dao.
Where do we board, and how far is it from Hanoi?
At Lot 11B, Tuan Chau International Marina, Ha Long, Quang Ninh — about two and a half to three hours by road from Hanoi. Guests arrive around 11:45, and on the last day we disembark at 10:30. Limousine transfers from Hanoi or Ninh Binh can be added when you book.
Why Lan Ha Bay rather than Ha Long Bay?
Lan Ha Bay is the quieter extension of Ha Long Bay, with fewer boats and unspoiled scenery. Diana leaves from Tuan Chau on Ha Long Bay and crosses into Lan Ha Bay.
Does every suite have a balcony?
Yes. All 56 suites have a private balcony or terrace — there is no inside cabin on the ship — along with a bathtub and Starlink Wi-Fi. There are seven categories, from 30 m² to 55 m².
How is Diana built for the weather on the bay?
Diana has a double hull from the Damen shipyard and is classed VR-SI for two-metre seas and force-eight wind — which in Ha Long means she sails in conditions that keep lighter boats in harbour.
How much does a Diana cruise cost?
Rates depend on your dates, the suite and the rate you choose, flexible or non-refundable. See live availability and prices on our booking page, and our offers, including 10% off with Last Minute and Early Bird bookings.
Reservations
Sail aboard Diana
Two days, one night — or three days, two nights — from Tuan Chau Harbour into Lan Ha Bay.
