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Lan Ha Bay lies just South of Halong Bay, separated by the famous Cat Ba Island. While the area shares the same dramatic limestone karsts and emerald waters as its famous neighbour, Lan Ha Bay only has a fraction of tourist traffic. If you want the scenery without the crowds, this is where to come. Whether you arrive by cruise or as a day-tripper from Cat Ba, here are 10 things to do that will make your Lan Ha Bay trip truly memorable.
Top Things to do in Lan Ha Bay
1. Cruise the bay on a day or overnight boat trip
2. Do morning Tai Chi on the cruise deck
3. Join an on-board cooking class
4. Go squid fishing after dark
5. Kayak through the caves and lagoons
6. Explore the Light and Dark Caves
7. Swim or snorkel at a secluded beach
8. Visit a floating fishing village
9. Explore Cat Ba Island on shore
10. Watch the sunrise from the deck
1. Cruise Lan Ha Bay on a Day or Overnight Boat Trip
As with Halong Bay, the best way to experience Lan Ha is from the water. Cruise operators here tend to run smaller and more intimate vessels than those in Halong, which suits the quieter character of the bay well. Day trips are available for those short on time, but if you can afford to spend a night, it is well worth it - once the day boats head back to port, the karsts are yours to enjoy in near silence. Demand is highest between October and April, so booking ahead is recommended during those months.
2. Do Morning Tai Chi on the Cruise Deck
If you decide to go for an overnight cruise, starting the morning with a Tai Chi session on deck feels even more unhurried here than it does in Halong Bay. The waters of Lan Ha are generally calmer, the surrounding landscape a little wilder, and the absence of other boats in the early hours makes the whole thing feel genuinely removed from the rest of the world. Most cruise operators offer this as a complimentary activity. It is beginner-friendly and a gentle way to ease into the day before the bay wakes up around you.
3. Join an On-Board Cooking Class
Many cruise operators on Lan Ha Bay include a cooking class as part of their itinerary. As with Halong, spring rolls tend to feature as the go-to introductory dish. What sets the Lan Ha experience apart is the proximity to Cat Ba Island, which means the seafood on board is often locally sourced and exceptionally fresh. If your operator offers a crab dish as part of the class, it is worth trying - crab is one of the area's most celebrated local specialties.
4. Go Squid Fishing After Dark
With fewer boats around and no distant lights from the shore, the bay at night is remarkably dark and quiet - which makes the squid fishing experience here feel even more immersive than in Halong. Crew members set up rods and bright lights along the side of the boat to draw the squid to the surface, and from there, it is a patient and surprisingly social way to spend an evening. Most overnight operators include this as a complimentary activity, and any catch can be served as part of your meal.
5. Kayak Through the Caves and Lagoons
Lan Ha Bay has over 100 caves, and it sees far fewer tourists than Halong. This makes kayaking here an especially peaceful and exploratory experience. Most operators provide kayaking, with morning sessions offering the best light and calmness. If you prefer not to paddle yourself, a thuyền nan, which is a small bamboo boat rowed by a local fisherman, is a nice option. With this option, you can enjoy the same routes at a slower and more relaxed pace.
6. Explore Light Dark Caves
One of the most distinctive cave experiences in Lan Ha Bay is Hang Sáng Tối - a cave system which name translates literally as "Light and Dark Caves". Hang Sáng is the brighter of the two, with a ceiling around 3 metres above the waterline and a length of roughly 100 metres; Hang Tối is longer at 200 metres, darker, and noticeably more atmospheric as the light fades and the walls narrow around you. This spot is best experienced firsthand, as descriptions rarely do it justice.
7. Swim or Snorkel at a Secluded Beach
One thing Lan Ha Bay has that Halong largely does not is beaches. The most well-known is Ba Trai Dao - Three Peach Beach - a small and beautiful stretch of sand tucked between karsts and accessible by boat. The water is still, the views are striking, and you can often find a quiet corner all to yourself. Snorkelling gear is available through most cruise operators for those who want to explore beneath the surface, making this one of the more distinctive experiences the bay has to offer.
8. Visit a Floating Fishing Village
Lan Ha has its own floating fishing communities scattered across the water, and a visit to one makes for one of the more quietly memorable stops on any cruise itinerary. The most popular one is Vung O or Cai Beo. The villages here tend to be smaller and less visited than those in Halong, giving the experience a more genuine feel. Life moves at its own pace - residents fish, maintain their boats, and go about their days against a backdrop of karsts and open sky. Follow your guide's lead, be respectful of the community's space, and take the time to simply observe the local life.
9. Explore Cat Ba Island on Shore
Cat Ba Island deserves more than a passing glance from the ferry window. A half day on shore opens up a surprising amount - Cat Ba National Park offers trekking trails through dense forest and up to viewpoints overlooking the bay with varying lengths from 2 to 8 hours. For those with a special interest in history, the Cat Ba Hospital Cave - a wartime underground hospital used during the American War - is a sobering and fascinating visit.
10. Watch the Sunrise from the Deck
Waking up early on an overnight cruise requires willpower, but it is one of those travel moments that tends to stay with you. As the sunlight comes up over the karsts and the mist clears from the water, the bay reveals itself at its most unhurried. With Cat Ba's forested hills visible in the distance and the sound of the water the only thing breaking the silence, it is a version of Vietnam's coastline that most visitors never get to see.
Quick Facts & Common Questions
Best time to visit: Between October and April, when the weather is dry and the sea is calm, is the best time to make a trip to Lan Ha Bay. The most common route from Hanoi is by bus or train to Hai Phong, then a ferry to Cat Ba Island, from where most cruises depart. Some operators run combined Halong and Lan Ha itineraries from Tuan Chau pier, which simplifies the journey considerably.
Choosing between Halong and Lan Ha Bay: It depends on what you are after. Lan Ha offers the same scenery with fewer tourists, more secluded beaches, and a quieter atmosphere - many visitors find it the more rewarding of the two, though it does require a little more effort to reach.
Day trip or overnight trip? Day trips are possible and cover the highlights well, but an overnight cruise is worth it if you can manage it. Squid fishing and Tai Chi on deck are only available to those who stay the night, and those tend to be the moments people remember most.
Lan Ha Bay rewards those who make the effort to reach it. An overnight cruise covers the full range of activities and views - caves, beaches, fishing villages, and the quiet of the bay after dark. For those combining both destinations, our guide to the top 10 things to do in Halong Bay is a natural next read.
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