Lan Ha Bay: The Quieter Karst Alternative to Ha Long

Lan Ha Bay sits in the shadow of its famous neighbor, Ha Long Bay—which means it's far less crowded and easier to navigate on your own terms.

Located about 30 kilometers south of Hai Phong city, the bay sprawls across 7,000 hectares of limestone karst landscape. It's technically part of the Cat Ba Archipelago, and more than 5,400 hectares are protected as Cat Ba National Park, a UNESCO biosphere reserve. The 400-odd islands and islets here range from exposed rock peaks to fully vegetated landmasses, arranged in the bay's distinctive crescent shape.

The Landscape

What makes Lan Ha different from Ha Long isn't geology—it's density and atmosphere. You get the same jagged limestone formations and emerald water. But the bay stays quieter. There are 139 named sandy beaches scattered throughout. Some, like Ang Vem, Cat Dua, and Ben Beo, sit wedged between cliff walls and feel genuinely remote. Most tourists hitting northern Vietnam aim straight for Ha Long; Lan Ha gets the overflow or the travelers who read ahead and choose it on purpose.

The karst here are slightly less dramatic than Ha Long's most famous formations, but they're close enough that boat tours sometimes link the two bays (this became possible in 2025 with new tourism routes). If you want to photograph pristine limestone without 2,000 other tourists in the frame, Lan Ha is the play.

What to Do

Kayaking is the main draw. The calm waters make it manageable even for beginners. You paddle into hidden lagoons, duck through cave openings, and weave between islands that would be impossible to navigate on a larger tour boat. Most outfitters operate from Ben Beo port on Cat Ba Island.

You can also:

• Swim at any of those 139 beaches. The water is clear and the swimming season runs roughly May through September, though it's swimmable year-round if you can tolerate cooler temps.
• Tour floating villages to see how local fishing families live. These aren't theme parks—they're actual settlements, though tourism has changed them.
• Rock climbing at designated spots within the bay (some routes require permits).
• Take a half-day or multi-day cruise, including yacht options if your budget stretches.

Note: kayaking was temporarily suspended in 2024 while new safety and environmental regulations were drawn up. Check current rules before booking.

Image by Christophe95 via Wikimedia Commons (CC BY-SA)

Getting There

You'll need to base yourself on Cat Ba Island first. From Hanoi, take a bus or drive to Cat Ba (about 3.5 hours). The island has its own national park, town center (Cat Ba town), and port at Ben Beo, where tour boats launch.

From Ben Beo, boat tours to Lan Ha take 30–45 minutes depending on destination. Tour operators handle transport, guides, and equipment. Prices range from around 800,000–2,500,000 VND per person depending on tour length and yacht class.

Image by Christophe95 via Wikimedia Commons (CC BY-SA)

When to Go

Best: May through September (calm water, warm). Avoid November to March if you're kayaking—winter seas get choppy and visibility drops.

The bay has hosted high-profile visitors (the King and Queen of Belgium visited in 2025), and in 2022 CNN listed it among Asia's hidden gems. That bump in international media has brought more tourism, but compared to Ha Long, it remains manageable.

The Trade-Off

Lan Ha isn't "undiscovered" anymore, but it's genuinely less developed than Ha Long. You won't find the cluster of massive cruise terminals or the carnival atmosphere. What you get instead is actual kayaking, actual swimming, actual quiet—at least between the hours of 8 a.m. and 4 p.m. when the day-trippers clear out.

If you're building a northern Vietnam itinerary, combine both bays. Ha Long gives you the iconic karst; Lan Ha gives you the experience of being alone on the water.