Top 10 Must-Visit Caves in Ha Long Bay 2026 (Part 1)

Ha Long Bay is not only famous for its majestic natural landscapes but also for its unique system of limestone caves formed over millions of years. Each cave is a masterpiece of nature with shimmering stalactites, stalagmites in myriad shapes, and fascinating legends.

Join Viet Sails Boutique Cruises to explore 10 of the most beautiful caves in Ha Long Bay that you can’t miss when traveling to this World Heritage site.

Ha Long Bay – A Natural Masterpiece

Quang Ninh province is located in the Northeast of Vietnam, bordering the East Sea and boasting a coastline of over 250 km. The province possesses a vast system of islands and bays, along with rich mountainous areas.

Tourists can easily reach Quang Ninh via the Hanoi – Ha Long expressway, buses, or by air through Van Don International Airport. This unique location and millions of years of natural sculpting have created a wonderland of thousands of islands and hidden caves.

Thanks to this, Ha Long Bay – Bai Tu Long Bay has become an ideal destination with over 300 limestone caves of all shapes and sizes, forming a magnificent “natural museum” waiting for you to explore.

Halong Bay
Halong Bay

Top 10 Most Beautiful Caves in Ha Long Bay 2025 (Part 1)

1. Sung Sot Cave – The Opera House in the Middle of the Sea

Highlights: Sung Sot Cave is famous for the contrast between its narrow entrance and the vast, majestic interior. Visitors will be astonished by the unexpected beauty upon entering.

Location: Located on Bo Hon Island, in the central area of ​​Ha Long Bay, about 14km southeast of Bai Chay pier.

Area: Total area of ​​over 10,000m², at an altitude of 25m above sea level. The cave is divided into two main chambers. The first chamber is about 30m high, like a large auditorium with thousands of stalactites and stalagmites.

The second chamber opens up a vast space that can accommodate thousands of people with an “Imperial Garden” inside, featuring a crystal-clear lake and lush greenery. Modern lighting systems enhance the cave’s mystical beauty.

Sung Sot Cave
Sung Sot Cave

2. Thien Cung Cave – The Heavenly Palace on Earth

Highlights: Thien Cung Cave is likened to a heavenly palace with its magnificent stalactite and stalagmite formations and unique multi-tiered structure. This is the most vibrant and splendid cave in Ha Long Bay.

Location: Located in the southwest of Ha Long Bay, north of Dau Go Island, about 4km south of the tourist boat harbor.

Area: Covering nearly 10,000m², the cave entrance is at an altitude of about 25m above sea level. The cave has three main chambers, each with its own unique beauty. On the eastern wall is a magnificent mural depicting characters from fairy tales. The stalactites hang down like sparkling crystal chandeliers, creating a magical atmosphere. The path leading to the cave is lined with steep cliffs and lush greenery on both sides.

Thien Cung Cave
Thien Cung Cave

3. Dau Go Cave – A Wonder of Wonders

Highlights: Dau Go Cave was honored by a French travel magazine as the “cave of wonders” for its ancient and pristine beauty. This cave holds significant historical value with traces of battles against foreign invaders.

Location: Located on Dau Go Island, about 6km from Bai Chay port and only 300m from Thien Cung Cave.

Area: Covering an area of ​​approximately 5,000m², the cave entrance is 17m wide and 12m high, situated at an altitude of 27m above sea level. The cave was formed about 2 million years ago and is divided into three main chambers. The ceiling is covered with a rich forest of colorful stalactites, creating a vibrant natural landscape. The second chamber has natural light filtering through, creating a magical beauty. The third chamber has a sudden, expansive opening.

Dau Go Cave
Dau Go Cave

4. The Labyrinth Cave (Dong Me Cung) – A Bewitching Enchantment in the Heart of the Bay

Highlights: The Labyrinth Cave has a complex structure with many interconnected chambers, creating a mesmerizing atmosphere as its name suggests. The cave possesses a mysterious beauty with diverse and colorful stalactites.

Location: Located on Lom Bo Island, in the central area of ​​Ha Long Bay, near Ti Top Beach and Bo Nau Cave.

Area: The cave has a fairly large area with many chambers. Inside, clusters of stalactites hang down, creating a magical space. Outside the cave, in addition to historical sediments, there are ancient trees casting their shadows on the calm, blue waters of the Labyrinth Lake. This is home to monkeys, monitor lizards, and many species of seabirds. The Labyrinth Cave is located on the central tour route of the bay.

The Labyrinth Cave
The Labyrinth Cave

5. Luon Cave – The Heavenly Gate Through the Mountains

Highlights: Luon Cave is the most unique underwater cave in Ha Long Bay. Visitors must paddle kayaks or small boats through the narrow cave arch to explore the secluded water valley inside.

Location: Located north of Bo Hon Island, about 15km southeast of Tuan Chau pier, near Sung Sot Cave.

Area: The cave is only about 2.5-4m high and about 60m long. After passing through the cave, visitors arrive at a water valley of about 1km² surrounded by high mountains, creating a picturesque landscape. This is home to golden monkeys and many species of seabirds. Kayaking through Luon Cave is a favorite activity for many tourists visiting Ha Long Bay.

Luon Cave
Luon Cave

The first five caves on this list have partially outlined the mysterious and diverse beauty of the cave system in Ha Long Bay – Bai Tu Long. Each cave tells its own story, from its grand scale to its pristine beauty hidden deep within the limestone mountains, contributing to the special allure of this heritage site.

The exploration doesn’t end here. In Part 2, we will continue to visit the remaining five caves – lesser-known but no less impressive destinations, for those who want to see a deeper and more unique side of Ha Long Bay – Bai Tu Long.

If you are looking for a gentle and complete way to explore this beauty, Viet Sails Cruise is the ideal choice with its journeys into tranquil areas, allowing you to fully appreciate the natural beauty of the bay in the most relaxed way.

 

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