How Many Caves Are There In Halong Bay & Which Ones Can You Visit on Your Trip?

How Many Caves Are There in Halong Bay and How Many Can You Visit?

Halong Bay is one of Vietnam’s most breathtaking natural wonders, famous not only for its emerald waters and limestone karsts but also for its incredible network of caves. These caves, formed over millions of years, are among the highlights for any traveler visiting this UNESCO World Heritage Site.

But how many caves are there in Halong Bay? And realistically, how many can you explore during a trip? Let’s dive in.

How Many Caves Are in Halong Bay?

Scientists and local authorities estimate that Halong Bay is home to nearly 60 discovered caves, with more still hidden across the thousands of limestone islands. These caves are the result of millions of years of water and wind erosion, creating an underground world of stalactites, stalagmites, and dramatic chambers.

The caves fall into three main types:

Dry caves – large chambers with dramatic limestone formations.
Water caves (grottoes) – accessible only by boat or kayak.
Historical caves – linked to legends, myths, or past battles.

While the bay has dozens of caves, only a handful are open to the public, carefully managed to protect their fragile beauty.

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The Most Famous Caves in Halong Bay

If you’re planning a cruise, these are the caves most travelers get to see:

Sung Sot Cave (Surprise Cave)

The largest and most famous cave in Halong Bay, Sung Sot features vast chambers filled with shimmering stalactites and stalagmites. Its name—“Surprise Cave”—comes from the jaw-dropping moment when the cavern suddenly opens up after a narrow entrance.

Thien Cung Cave (Heavenly Palace Cave)

Halong bay day cruise - thien cung cave — Thien cung cave during Halong bay trip

Thien Cung is known for its dramatic limestone formations illuminated by colorful lighting. Local legends speak of a dragon king’s wedding banquet held here, and the cave’s intricate rock patterns resemble mythical figures.

Dau Go Cave (Wooden Stakes Cave)

This cave carries both natural and historical significance. Legend has it that General Tran Hung Dao stored wooden stakes here before defeating Mongol invaders in the 13th century. The cave’s grandeur and its connection to Vietnam’s past make it a must-see.

Luon Cave

Unlike the massive dry caves, Luon is a water cave, accessible only by bamboo boat or kayak. Passing through the low arch, visitors enter a tranquil lagoon surrounded by limestone cliffs—a serene and magical experience.

Other Notable Caves

Me Cung Cave – Smaller but with incredible views of the bay.

Trinh Nu Cave (Virgin Cave) – Associated with a local love legend.

Ho Dong Tien Cave – Less crowded, known for its hidden beauty.

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How Many Caves Can You Visit in One Trip?

The number of caves you can explore depends on the type of cruise or tour you choose:

Day Cruise (4–6 hours): Usually includes 1–2 caves, such as Sung Sot or Thien Cung, plus kayaking or a short island stop.
Overnight Cruise (2 days/1 night or longer): You can see 2–3 caves at a relaxed pace, combined with swimming, kayaking, and visiting fishing villages.
Private or Custom Tour: Flexible—you can request specific caves or lesser-known ones if you prefer to avoid crowds.

If caves are your top priority, choosing an overnight cruise gives you more time and a richer experience.

Practical Tips for Visiting Halong Bay Caves

Best Time to Visit: March to May and September to November offer the most pleasant weather.
What to Bring: Comfortable shoes for walking on rocky surfaces, a small flashlight for darker corners, and water.
Stay Responsible: Follow local guidelines, avoid touching stalactites, and don’t leave any litter behind—these caves are fragile treasures.

FAQs About Halong Bay Caves

How long does it take to explore a cave?
Most caves take 30–60 minutes to explore, depending on size.

Are caves safe for children or elderly visitors?
Yes, though some caves have many steps. Sung Sot, for example, requires a moderate climb.

Do cruises include cave entry fees?
Yes, entrance fees are usually included in your cruise package.

Final Thoughts

Halong Bay has nearly 60 discovered caves, but on a typical trip, you’ll explore just a few of the most spectacular ones. Whether it’s the grandeur of Sung Sot, the legends of Thien Cung, or the serene beauty of Luon, each cave offers a unique experience that makes Halong Bay unforgettable.