Cat Ba: the big island of Halong Bay without the crowded cruises

Halong Bay has a problem: 4 million visitors a year, 500 active cruises, inflated prices. The solution is called Cat Ba — the largest island in the bay (260 km², 12,000 inhabitants), with UNESCO national park, its own beaches, trekking, ferry access from Haiphong, and prices 50% lower. Technically Cat Ba sits within a separate archipelago (Lan Ha Bay), but geologically it’s the same: same karst, same limestone islets, same turquoise water.

Why pick Cat Ba over a classic cruise

Halong cruises depart from Tuan Chau (near Hanoi) and cover the central, busy, expensive zone. Cat Ba covers Lan Ha Bay — the southern bay, with 400 islets, accessible beaches, and less than 10% of the official cruises. And you can sleep on land (island) instead of boat (more comfortable, cheaper).

• 🏝Area 260 km²
• 🌲National park 70% of island
• 💰Hotel in Cat Ba €25-80/night
• ⛴Ferry from Haiphong 100-150,000 VND

Lan Ha Bay: the Halong alternative

Lan Ha Bay is the southern bay, with 400 karstic islets and 139 small beaches (some 20 m of sand between vertical walls). Visited by kayak or speedboat from Cat Ba town. Day tours: 400-700,000 VND with meal and kayak. Overnight-on-boat tours: 900,000-1,500,000 VND (1 night, similar price to Halong but with fewer people).

Crystal water + caves + floating fishing villages + kayaking to solitary beaches = the experience Halong promises but without the saturation.

Cat Ba National Park

70% of the island is national park. Fauna: Cat Ba langur (endemic, 60 surviving individuals, one of the world’s most endangered primates), civets, macaques, 200 bird species. Flora: primary tropical rainforest.

Recommended trekking:

• Ngu Lam Peak route (225 m): 2 h round trip, panoramic. 80,000 VND park entry.
• Viet Hai village route (isolated fishing village): 4 h, starts at Hospital Cave, ends in the hamlet. Return by boat (30 min to Cat Ba town).
• Monkey Island: nearby islet, aggressive macaques (caution). 150,000 VND boat.

Cat Ba town vs. the beaches

Cat Ba town (south of the island, 8,000 inhabitants) is the services hub: hotels, restaurants, agencies. But the coast here has medium beaches and commercial port, not the pretty area.

Cat Co beaches (1, 2, 3): 3 km east of Cat Ba town. The decent “touristic” beaches. Free. Small beaches (50-100 m), cliff-ringed.

Secret Lan Ha beaches (by boat/kayak): the most beautiful. Viet Hai, Monkey Island, several unnamed. Only accessible on tour.

How to get there

From Hanoi, 3 options:

1. Bus + ferry (cheapest): bus to Haiphong (2 h, 150-250,000 VND) + ferry to Cat Ba (45 min, 100-150,000 VND). Total 4-5 h.
2. Direct bus with ferry included (Cat Ba Discovery, Good Morning Cat Ba): leaves Hanoi 7-8 am, arrives Cat Ba 12-13. 250-350,000 VND.
3. 2-day 1-night tour from Hanoi (combining Lan Ha Bay + Cat Ba): €80-150. Simplest if you don’t want to organise.

Where to sleep on Cat Ba

• Cat Ba Island Resort & Spa: beachfront, €80-140.
• LePont Cat Ba Bungalows: isolated area, €50-80.
• Hotel Little Cat Ba Paradise: mid, €35-55.
• Central Backpackers Cat Ba: hostel, €15-25.

3-day route

• Day 1: arrive Cat Ba + national park trekking. Night in Cat Ba town.
• Day 2: full Lan Ha Bay tour (kayak + beaches + cave). Night Cat Ba.
• Day 3: Cat Co beach in the morning, back to Hanoi afternoon.

The complete Vietnam guide from Far Guides dedicates a section to Halong + Cat Ba with a comparative bay map, operator analysis and national park trekking routes.