Lan Hạ Bay Beaches

Lan Hạ Bay is the southern, less-photographed half of the karst archipelago around Cát Bà island. It has 400+ islets, a few hundred small white-sand beaches tucked into limestone coves, and a fraction of Hạ Long Bay's cruise traffic.

What it is

A 70 km² bay between Cát Bà island and Long Châu archipelago, protected since 2013 as part of Cát Bà Biosphere. Junks here load from Cát Bà town's Bến Bèo harbour rather than Tuần Châu near Hạ Long city, which keeps numbers down. The water clarity is better than Hạ Long proper and the beaches more accessible.

What to see and do

• Beach islets — Cát Dứa (Monkey Island), Tiền Đông, Ba Trái Đào ("Three Peaches"). Most require kayak access.
• Kayaking from a junk — 1–2 hour kayak sessions are standard on every overnight cruise.
• Climbing — Asia Outdoors runs deep-water solo at Butterfly Valley.
• Snorkelling — visibility 3–6 m at the outer islets; coral patchy.
• Floating villages — Cái Bèo is one of the largest in Vietnam, 300+ households.
• Sunset swim at Tiền Đông beach — small, often empty after the cruise boats leave.

How to get there

Lan Hạ is accessed via Cát Bà island. From Hanoi this is a 3h30 bus + ferry combination — see Cát Bà island.

For day trips, leave from Bến Bèo harbour on the southeast side of Cát Bà town. For overnight junks, most boats include hotel pickup from Hanoi as part of a 2D1N or 3D2N package.

For independent travellers: rent a sampan from Bến Bèo for 800,000–1.5m VND/day with driver, and design your own route.

When to go

October–April is the dry, clear season. April and May are the warmest swimmable months before the summer humidity. June–September is hot, can be wet, and the bay sees afternoon storms. August–September brings typhoon risk; cruises cancel.

Avoid Vietnamese public holidays (Reunification, Tết) when Cát Bà swells with domestic crowds.

Cost and operators

Trip	Operator examples	Price
Day trip Lan Hạ kayak/snorkel	Cat Ba Discovery, Cat Ba Express	$25–40
1-night 2-day cruise	Sena, Mon Cheri, Orchid	$130–250
2-night 3-day cruise	Orchid Premium, Era	$300–500
Climbing day	Asia Outdoors	$65
Private sampan day	Bến Bèo	from $40

Cruises sleeping in Lan Hạ rather than Hạ Long are typically newer and quieter. Orchid Cruise and Sena Cruises are reliable mid-range options.

Practicalities

• Lifejackets are standard for kayaking; insist if not offered.
• Bring reef-safe sunscreen; coral is fragile.
• Toilet facilities on small beach islets — none, plan accordingly.
• Mobile signal is patchy past Cát Bà; download maps.
• Cash for harbour-side rentals.

Honest take

If you can do only one northern bay, Lan Hạ beats Hạ Long for beaches, water clarity, and cruise quality. The headline karst scenery is essentially the same — it is one continuous geological formation — but the experience is more spacious. The trade-off is the longer overland journey to Cát Bà. For an overnight cruise: book one of the smaller Lan Hạ-only operators and skip the Tuần Châu mass-market boats.

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Related: Cát Bà island · Hạ Long Bay region · Cát Bà NP · Best beaches overall