Best beaches on Cat Ba Island: The complete 2026 guide

What you need to know before visiting Cat Ba's beaches

Before you pack your swimsuit, understand the context. Cat Ba is not a pristine resort island like Phu Quoc. It is a working island with a national park, a busy town, and a massive tourism development project underway. The beaches are real and beautiful, but they come with caveats.

The 2026 construction reality (what's actually affected)

The Cat Ba Central Bay project is a large waterfront development along the town promenade. It is reshaping the area between Cat Ba Pier and the Cat Co beaches. Here is what it means for your trip:

Cat Co 1, 2, and 3: These beaches are closest to the construction. Expect some noise from heavy machinery during weekday working hours (8am to 5pm). The visual impact is noticeable from the beach access paths. The beaches themselves remain fully open and swimmable.
Tung Thu Beach: Completely unaffected. No construction noise, no visual disruption.
All Lan Ha Bay beaches (Ba Trai Dao, Van Boi, Tiger Beach, etc.): Untouched. These are accessed by boat and far from the town development.

Why this matters: The construction does not ruin a trip. Many travelers report barely noticing it once they are on the sand. But if you want total silence, choose Tung Thu or a boat-access beach. Some travelers actually prefer visiting now before the area becomes more resort-like and prices rise.

Beach types on Cat Ba: land-access vs. boat-access

This distinction is critical. Confusing the two leads to wasted time and frustration.

Land-access beaches: Cat Co 1, 2, and 3 (walk from town, 15-20 minutes). Tung Thu (walk, electric car, or motorbike, 25 minutes from town). These require no tour, no booking, and no extra cost beyond transport.
Boat-access beaches: Ba Trai Dao, Van Boi, Monkey Island, Tiger Beach, Moody Beach, Nam Cat Island. These require a boat tour or private charter from Beo Wharf or Cat Ba Pier. You cannot walk or drive to them.

Land-access beaches are for spontaneous dips and half-day trips. Boat-access beaches are for full-day adventures.

Best time of year for beach activities

April to June: Best balance. Warm water (26-30°C / 79-86°F), low rain, manageable crowds. Ideal for all beaches.
July to August: Peak domestic tourism. Crowded Cat Co beaches. Water is warmest but rain is more frequent. Typhoon risk exists but rarely cancels beach days entirely. Choose Tung Thu or boat tours to escape the masses.
September to October: Still warm (25-28°C / 77-82°F). Fewer crowds. Good shoulder season for beach visits.
November to March: Cooler water (18-22°C / 64-72°F). Sunny days are still pleasant for swimming but expect overcast skies. Few tourists on the sand. The bigger risk is rain, not temperature.

Pro tip: Typhoon season runs July to September. Check the weather forecast 3 days before your beach day. Most storms pass quickly and clear skies return within 24 hours.

Cat Co beaches 1, 2, and 3: The town beaches

These are the most accessible beaches on the island. They sit in a row along the eastern coast of Cat Ba Town, connected by a cliffside path that offers some of the best sunset views in northern Vietnam.

Cat Co 1 — the main beach

This is the largest of the three, stretching roughly 300 meters of golden sand. It is the busiest beach on the island, especially on weekends and public holidays when Vietnamese tourists from Hanoi and Hai Phong flood in.

Amenities: Lounger rentals cost 30,000-50,000 VND ($1.20-$2). Showers cost 10,000 VND ($0.40). Snack vendors sell drinks, ice cream, and basic food.
Water conditions: Gentle slope, shallow entry. Safe for weak swimmers and children. Waves are moderate.
Crowd levels: High. Expect noise, music from nearby cafes, and limited personal space in peak season.
Best for: Travelers who want convenience. You are steps from town, restaurants, and accommodation. If you want to roll out of your hotel and onto the sand, this is your beach.

Cat Co 2 — the quiet middle sibling

Accessed via a short cliffside path from Cat Co 1 (5-minute walk), this beach feels like a different world. It is smaller, more intimate, and significantly quieter.

Size: Smaller than Cat Co 1. Sand area narrows at high tide.
Amenities: Limited. A few lounger rentals, but no substantial food vendors. Bring your own water and snacks.
Crowd levels: Lower. Even in peak season, it rarely feels packed.
Water conditions: Calm, clear. Good for swimming.
Best for: Couples, readers, solo travelers seeking a calm vibe without leaving town.

Cat Co 3 — the adventure beach

At the far end of the cliffside path, Cat Co 3 has a different character. It catches more wind and slightly larger waves.

Size: Medium, similar to Cat Co 2.
Amenities: Adjacent to Cat Ba Sunrise Resort. Public access is maintained. Water sports available: jet skiing and banana boats. Prices vary, negotiate on the spot.
Water conditions: More wave action than Cat Co 1 and 2. Still safe for confident swimmers. No lifeguards.
Crowd levels: Moderate.
Best for: Active travelers, water sports enthusiasts, photographers (the sunset from the path above is spectacular).

Warning: The cliffside path between Cat Co 1 and Cat Co 3 is the best sunset spot on the island. Go 30 minutes before sunset to claim a spot.

Cat Co beaches: practical comparison table

Beach	Size	Crowd Level	Water Conditions	Amenities	Best For
Cat Co 1	Largest (300m)	High	Gentle, shallow	Full (loungers, food, showers)	Convenience, families
Cat Co 2	Small	Low	Calm, clear	Limited	Couples, quiet time
Cat Co 3	Medium	Moderate	Wavy, windy	Water sports nearby	Active travelers

Tung Thu Beach: The local favorite

Tung Thu Beach is 2 kilometers from Cat Ba Town. It is larger than any Cat Co beach and significantly quieter. Locals prefer it for weekend outings.

Location: 2km from town. Accessible by electric car (15,000 VND / $0.60) or a 25-minute walk along the coastal road.
Size: Long stretch of sand, wider than Cat Co 1.
Water: Calm, shallow entry. Ideal for families with young children. No strong currents.
Amenities: Kayak rentals available. Basic food stalls serve seafood BBQ, noodles, and drinks. Limited shade, bring an umbrella.
Crowds: Significantly quieter than Cat Co beaches. Even on weekends, you will find space.
The trade-off: Fewer amenities. No dramatic cliff backdrop. The beach faces a more open sea view rather than karst formations.

Pro tip: Tung Thu is the best beach for avoiding construction noise. If you want a peaceful day with space to spread out, go here.

Best for: Families, travelers seeking space, those avoiding construction noise.

Beaches in Lan Ha Bay: The hidden gems

Lan Ha Bay is the quieter, less crowded neighbor of Ha Long Bay. Its beaches require a boat, which keeps them pristine and uncrowded. Most visitors experience them as part of a day tour.

Ba Trai Dao Beach (Three Peach Beach)

This is the most photographed beach in Lan Ha Bay. Three small mountains shaped like peaches rise from the water, framing a stretch of white sand and crystal-clear water.

Location: 22km southeast of Cat Ba Pier.
Access: Boat only. Typically part of a Lan Ha Bay day tour.
Important practical note: The beach is partially submerged at high tide. Check tide tables before booking. Visit during low to mid-tide for the full beach experience.
Best for: Photographers, travelers on a Lan Ha Bay cruise.

Van Boi Beach

Small, pristine, and very quiet. Van Boi feels like a deserted island.

Location: Near Ba Trai Dao in Lan Ha Bay.
Access: Boat only.
Caution: Dead coral and shells in the sand. Wear water shoes. Strong currents at the edges of the beach. Swim only in the central area.
Best for: Solitude seekers, travelers who want a "deserted island" feel.

Monkey Island Beach (Cat Dua 1 and 2)

A 15-minute boat ride from Beo Wharf. Two beaches: Cat Dua 1 (public, livelier) and Cat Dua 2 (resort beach, quieter).

The monkey factor: Wild monkeys roam freely. They are entertaining but can be aggressive. Keep food and valuables secured. Do not feed them.
Activities: Swimming, short hike to a viewpoint, kayaking.
Honest warning: On busy days, the beach can be littered. The monkeys can be a nuisance.
Best for: A half-day trip from Cat Ba Town.

Tiger Beach and Moody Beach

These beaches are in southern Lan Ha Bay. They are primarily known for rock climbing and deep water soloing on limestone cliffs.

Access: Boat only. Often combined in climbing-focused tours.
Not ideal for: Traditional swimming or families. The water is deep near the cliffs.
Best for: Climbers and adventure travelers.

Nam Cat Island Beach

Located 5km southeast of Cat Ba Pier. Features gentle waves, kayak rentals, and space for group activities.

Popular for: BBQs, bonfires, volleyball. Organized by tour groups.
Best for: Groups, social travelers.

How to choose the right beach for your trip

By travel style

Travel Style	Recommended Beach	Why It Works
Families with kids	Tung Thu, Cat Co 2	Calm water, space, fewer crowds
Couples seeking romance	Van Boi, Cat Co 2	Secluded, quiet, intimate
Solo travelers	Cat Co 1 (social), Tung Thu (space)	Easy access or peaceful solitude
Adventure travelers	Tiger Beach, Moody Beach, Cat Co 3	Climbing, water sports, waves
Budget travelers	All Cat Co beaches (free entry), Tung Thu	No entry fees, low-cost transport

By time available

1-2 hours: Cat Co 1 or 2. Walk from town, quick dip.
Half day: Cat Co 1-3 loop plus Tung Thu. Walk the cliffside path, swim at multiple beaches.
Full day: Lan Ha Bay boat tour. Visit 2-3 beaches, lunch included.
Multi-day: Combine town beaches with a Lan Ha Bay cruise.

By season

Peak summer (July-August): Choose Tung Thu or boat-access beaches to avoid crowds.
Shoulder season (April-June, September-October): All beaches are pleasant.
Winter (November-March): Beaches are quieter but swimming may be cold. Sunny days are still good for sunbathing.

Getting to Cat Ba's beaches

Walking and the cliffside path

The scenic path connecting Cat Co 1 and Cat Co 3 takes 20 minutes. It offers stunning views of the bay and is essential for sunset. Walking from town to Cat Co beaches takes 15-20 minutes downhill.

Electric cars and taxis

Electric car from town center: 10,000-15,000 VND ($0.40-$0.60) per person. Flag them down on the main road.
Taxi: 30,000-50,000 VND ($1.20-$2) for short trips within town.

Motorbike rental

Daily rental: 150,000-200,000 VND ($6-$8).
Parking at beaches: 5,000-10,000 VND ($0.20-$0.40).
Key routes: Town to Tung Thu, town to national park area.
Safety note: Roads can be slick after rain, especially on curves. Wear a helmet.

Pro tip: If you rent a motorbike, read Renting a Motorbike in Vietnam: The Legal Truth Nobody Tells Tourists for important legal requirements.

Boat tours and private charters

Standard Lan Ha Bay day tour: 400,000-800,000 VND ($16-$32) per person. Includes lunch, kayaking, and stops at 2-3 beaches.
Private boat charter: 1,500,000-3,000,000 VND ($60-$120) for a full day.
Booking advice: Book through your hotel or a reputable shop in town. Avoid touts at the harbor.

For more transport details, see How to get around Cat Ba Island: The complete transport guide for 2026.

Practical tips for a great beach day

What to pack: Reef-safe sunscreen, water shoes, dry bag, insect repellent, cash. Most beach vendors do not accept cards.
Food and drink: Cat Co beaches have snack vendors and casual restaurants on the road behind. Tung Thu has basic food stalls with seafood BBQ. Boat tours include lunch (quality varies). Pack a picnic from Cat Ba Market for more control.
Safety: No beaches have lifeguards. Cat Co 3 has stronger waves. Van Boi has sharp coral and edge currents. Jellyfish are rare but possible in summer.
Environmental responsibility: Take all trash with you. Do not touch coral. Do not feed monkeys.
Tides: Check tide tables for Ba Trai Dao and Van Boi. Both are partially submerged at high tide.

Where to eat near the beaches

Cat Co beaches: Snack vendors sell drinks, instant noodles, and grilled corn. A few casual restaurants on the road behind the beaches serve pho, rice dishes, and seafood.
Tung Thu: Basic food stalls offering seafood BBQ, fried rice, and cold beer. Simple but satisfying.
Boat tours: Lunch is typically included. Expect simple Vietnamese dishes: spring rolls, fried fish, rice, and vegetables.
Packing a picnic: Buy supplies at Cat Ba Market. Fresh baguettes, cheese, fruit, and cold drinks are easy to find.

Cat Ba beaches vs. other Vietnam beaches

Cat Ba vs. Halong Bay: Cat Ba beaches are real beaches with sand and swimming. Halong Bay is primarily cruise-based with limited swimming spots.
Cat Ba vs. Phu Quoc: Phu Quoc has better year-round weather and more resort-style beaches. Cat Ba has dramatic karst scenery and a more adventurous feel. Read Phu Quoc Beyond the Resorts for comparison.
Cat Ba vs. Nha Trang: Nha Trang has longer, more developed beaches with a full party scene. Cat Ba feels more natural and less commercialized. See Nha Trang in 2026 for details.
Cat Ba vs. Da Nang: Da Nang beaches are wider and more consistent. Cat Ba offers variety and adventure. Check Visiting Da Nang for more.

Cat Ba is not a classic beach resort destination. It is an adventure base with excellent beaches attached. If you want luxury resorts and consistent sunshine, go to Phu Quoc or Nha Trang. If you want dramatic karst scenery, island exploration, and beaches that feel like discoveries, Cat Ba delivers.

For a full overview of the island, read Cat Ba Island things to do: The complete 2026 travel guide.

FAQ

Q: Is Cat Ba too touristy? Cat Ba Town can feel crowded and overdeveloped, especially around the Cat Co beaches on weekends and holidays. However, most of the island remains quiet. Tung Thu Beach, the Lan Ha Bay beaches, and the national park areas see far fewer visitors. The key is choosing where to stay and which beaches to visit.

Q: What is the prettiest beach in Vietnam? "Prettiest" is subjective. Cat Ba's beaches are unique for their dramatic limestone karst backdrops. Ba Trai Dao Beach in Lan Ha Bay is often considered the most photogenic on the island. An Bang in Hoi An and Sao Beach in Phu Quoc are other strong contenders depending on what you value.

Q: Which is better, Cat Ba or Ha Long Bay? They serve different purposes. Cat Ba is better for beach-going, hiking, independent exploration, and budget travel. Halong Bay is better for overnight cruises and the classic karst panorama. Many travelers combine both: a few days on Cat Ba for beaches and hiking, plus a one-night cruise in Halong Bay.

Q: Are the Cat Co beaches free? Yes, all Cat Co beaches are free to enter. Lounger rentals cost 30,000-50,000 VND ($1.20-$2). Showers may have a small fee around 10,000 VND ($0.40). Tung Thu Beach is also free.

Q: Can you swim at Cat Ba beaches in winter? Yes, but the water is cool, around 18-22°C (64-72°F) from December to February. Sunny winter days can still be pleasant for swimming. The bigger risk is rain and overcast skies rather than temperature.

Q: How do I get to the hidden beaches in Lan Ha Bay? All Lan Ha Bay beaches require a boat. The most practical option is a day tour from Cat Ba Town, which typically includes lunch, kayaking, and stops at 2-3 beaches. Private charters are available for more flexibility.

Q: Is it safe to swim at Cat Ba beaches? Generally yes. Cat Co 1 and 2 have gentle waves and shallow entries. Cat Co 3 has stronger waves but is still safe for confident swimmers. Van Boi Beach has stronger currents at the edges. No beaches have lifeguards, so swim with caution, especially with children.

Q: What is the construction in Cat Ba Town and does it affect the beaches? The Cat Ba Central Bay project is a large tourism development along the waterfront. The Cat Co beaches are closest to the construction and may experience some noise. The beaches themselves remain open and accessible. Tung Thu Beach and all Lan Ha Bay beaches are completely unaffected. The project is expected to continue through 2026.