Major city · Vietnam
Cat BaCát Bà
Go for 2 nights if you want Lan Ha Bay by kayak and a national park walk; skip if you want a quiet beach town — Cat Ba town is loud and built up.
Cat Ba is the largest island in the Cat Ba Archipelago and the land gateway to Lan Ha Bay, the quieter half of the Ha Long karst. About half the island is national park, home to the critically endangered Cat Ba langur. The town itself is a Vietnamese resort strip: construction, karaoke, touts. Most travellers come for two nights — one day on the water, one day on the island — and use it instead of, or alongside, a Ha Long Bay cruise.
More ways in
Local time, weather, currency, airports
- Weather
- see forecast
- Currency
- VND
- Best months
- Mar–Jun, Sep–Nov
- avoid Jul–Aug (storms, peak domestic crowds), Dec–Feb (cool, grey, some boats idle)
- Airports
- HPH · HAN
- Nights
- 2
Rules in force · 5Drug trafficking can carry the death penalty in Singapore…
- Southeast Asia ↗Drug trafficking can carry the death penalty in Singapore, Malaysia, Indonesia, Vietnam, Laos, Thailand, Brunei and Myanmar; never carry a bag or parcel for anyone.
- Southeast Asia ↗Carry a passport valid for at least six months from entry with two blank pages; airlines refuse boarding on less.
- Vietnam ↗Apply for the e-visa only on the official government portal; lookalike sites charge extra.
- Vietnam ↗Crossing streets: walk slowly and steadily; motorbikes flow around you — do not stop or run.
- Vietnam ↗Carry Vietnamese đồng in small notes; many stalls and taxis are cash-only.
What is in this basic guide9 covered · 4 not yet ▾
In this guide
Not in this guide yet
- Walking areas with bag rules
- Day plans checked against opening hours
- Airport-to-bed timings and the last safe connection
- Field-checked times and prices
Emergency numbers for Cat Ba113 ▾
Tap a number to call from your phone. These are the numbers listed in this guide; a row marked check has not been verified.
EssentialsQuick answers and what things cost
Essentials
Quick answers and what things cost
Quick answers
The questions people ask first about Cat Ba, one line each. Tap a card for the full answer.
- Cash or card?VND in small notes (10k–100k) for stalls, markets, xe ôm and tips at spas.Vietnam-wide
- SIM or eSIMViettel, Vinaphone and Mobifone sell tourist SIMs at airport arrivals; passport and a face photo are required for registration.Vietnam-wide
- Tap waterNot drinkable from the tap.Vietnam-wide
- TippingSit-down restaurant: Round up or 5–10% if no service charge is on the bill.Vietnam-wide
- Plugs & powerSockets A/C/F. US/Canada (A/B): fits · UK/Ireland (G): adapter · Australia/NZ (I): adapter. 220 V: US 120 V-only devices (hair dryers) need a converter; most chargers are dual-voltage.Vietnam-wide
- SafetyCat Ba is generally safe for tourists; the real risks are boat and ferry ticket scams, unmetered taxis…
Show all 12 answers
- RestroomsWestern toilets in cities and hotels; squat toilets and no paper in rural stops and on long buses — carry tissues.Vietnam-wide
- Emergency numbers113 police · 114 fire · 115 ambulance (not 911, 999 or 000)
- Sundays & holidaysMany museums close on Monday; the Hồ Chí Minh Mausoleum is also closed on Friday and shuts for maintenance for about two months each year (usually…Vietnam-wide
- Your embassyFind your embassy's 24-hour line before you fly.
- AirportHPH Cat Bi International (Hai Phong) (About 1 h by road to Got pier, then ferry and bus to Cat Ba town; total 2.5–3 h.).
- Getting aroundCat Ba town is walkable.
Cost cheat-sheet
Typical prices for the everyday things, as ranges. Your currency is shown next to the local price.
- CoffeeCoffee or fruit smoothie₫25,000–50,000 (≈ US$1–2)
- Sit-down mealSeafood dinner at the marketAgree the price per kilo before cooking.₫150,000–350,000 (≈ US$6–14)
- Street or quick mealNoodle soup or rice plate₫40,000–90,000 (≈ US$2–4)
- Beerdraught in a bar / can at a shop₫20,000–40,000 (≈ US$1–2)₫15,000–25,000 (≈ under US$1)
- SIM or eSIM, a weekeSIM or data SIM, about a week₫150,000–350,000 (≈ US$6–14)
- Budget bedHostel dorm bed, a night, per person₫120,000 (≈ US$5)
- Mid-range bedGuesthouse or hotel double room, a night, per room₫700,000 (≈ US$30)
- High-end bedGuesthouse or hotel double room, a night, per room₫1,500,000 (≈ US$60)
A day, not counting the bed: Budget ₫600,000 (≈ US$25) · Mid ₫1,200,000 (≈ US$50) · High ₫2,500,000 (≈ US$100)
Local prices, with USD next to them (rates 2026-09 (approximate); change it in the header). Ranges are desk estimates: check locally. Every price and the budget calculator →
DecideWhat it is known for, and when the weather works
Decide
What it is known for, and when the weather works
At a glance
What the city is known for, how you fly in, and where to find the phrases.
- Airports
- HPH Cat Bi International (Hai Phong) (About 1 h by road to Got pier, then ferry and bus to Cat Ba town; total 2.5–3 h.) · HAN Noi Bai International (Hanoi) (Most travellers come by direct bus-and-ferry from Hanoi, 3.5–4 h door to door.)
- Phrases
- Vietnamese phrasebook
Best months at a glance
From the guide's best and avoid lists
Jan
Avoid
20°C (68°F)68°F (20°C)
Feb
Avoid
21°C (70°F)70°F (21°C)
Mar
Best
24°C (75°F)75°F (24°C)
Apr
Best
28°C (82°F)82°F (28°C)
May
Best
31°C (88°F)88°F (31°C)
Jun
Best
32°C (90°F)90°F (32°C)
Jul
Avoid
32°C (90°F)90°F (32°C)
Aug
Avoid
31°C (88°F)88°F (31°C)
Sep
Best
30°C (86°F)86°F (30°C)
Oct
Best
28°C (82°F)82°F (28°C)
Nov
Best
25°C (77°F)77°F (25°C)
Dec
Avoid
22°C (72°F)72°F (22°C)
Best: Mar–Jun, Sep–Nov. Avoid: Jul–Aug, Dec–Feb. Month by month →
Warmest Jun (32°C (90°F)90°F (32°C)), coolest Jan (14°C (57°F)57°F (14°C) low), wettest Aug (17 rain days), driest Dec (6). Averages, not a forecast.
Weather and climate
Cat Ba: next 7 days
Loading forecast…
Forecast: Open-Meteo (CC BY 4.0), model data for this point.
Air quality
Loading…
Model estimate (CAMS via Open-Meteo), not a street-level station; readings near busy roads run higher.
Jan
20°C (68°F)68°F (20°C)
14°C (57°F)57°F (14°C)
8 rd
Feb
21°C (70°F)70°F (21°C)
15°C (59°F)59°F (15°C)
10 rd
Mar
24°C (75°F)75°F (24°C)
18°C (64°F)64°F (18°C)
12 rd
Apr
28°C (82°F)82°F (28°C)
21°C (70°F)70°F (21°C)
10 rd
May
31°C (88°F)88°F (31°C)
24°C (75°F)75°F (24°C)
12 rd
Jun
32°C (90°F)90°F (32°C)
26°C (79°F)79°F (26°C)
14 rd
Jul
32°C (90°F)90°F (32°C)
26°C (79°F)79°F (26°C)
16 rd
Aug
31°C (88°F)88°F (31°C)
25°C (77°F)77°F (25°C)
17 rd
Sep
30°C (86°F)86°F (30°C)
24°C (75°F)75°F (24°C)
13 rd
Oct
28°C (82°F)82°F (28°C)
22°C (72°F)72°F (22°C)
9 rd
Nov
25°C (77°F)77°F (25°C)
19°C (66°F)66°F (19°C)
7 rd
Dec
22°C (72°F)72°F (22°C)
15°C (59°F)59°F (15°C)
6 rd
High / low, both scales · rd = rain days
Arrive & moveAirports are listed under At a glance; this is how to move once you are in
Arrive & move
Airports are listed under At a glance; this is how to move once you are in
Getting around
Cat Ba town is walkable. Rent a motorbike (about US$5 a day) for the island road to the national park and the beaches; petrol should not cost more than ₫50,000 for 1.5 L. Local buses leave from the western edge of town near the market. Electric carts run to the beaches for about ₫10,000. Grab works only intermittently here and meter taxis often cover the meter — agree the fare before you get in.
Nearest full guides
Straight-line distance, not travel time
See & doDay-trips, door to door
See & do
Day-trips, door to door
Day-trips
Lan Ha Bay by kayak
goDoor to door: Half or full day
Boat from Cai Beo or Ben Beo pier, 20–30 min out
The reason to come. Book a small-group boat; confirm kayak and lunch are included.
Cat Ba National Park
goDoor to door: About 30–40 min from town
Motorbike or local bus east on the main island road
Entry around ₫15,000. Peak viewing tower walk is 1.5–2 h round trip and slippery after rain.
Monkey Island
cautionDoor to door: About 20–30 min
Short boat ride from Cat Ba town
A few habituated monkeys; basic huts and a beach. Fine as part of a boat day, thin as a destination.
Door to door: 3–4 h
Bus to Gia Luan ferry pier, ferry to Tuan Chau, then Grab or taxi
Ferry roughly hourly in high season (25 Apr–5 Sep), three a day in low season. Bus leaves town about 1 h before the ferry.
Door to door: 2.5–3 h
Ferry from Cai Vieng or Got pier plus bus 16C
Cheapest route off the island; the road section is industrial, not scenic.
Eat & sleepWhich area to sleep in
Eat & sleep
Which area to sleep in
Where to sleep
Areas, not hotels: pick the one that fits your arrival time and plans.
Cat Ba town waterfront (Duong 1/4)
Hotels, bars and the boat pier within a 10-minute walk. Loudest at night; best if you have an early boat.
Cat Ba town side streets (Nui Ngoc)
One or two blocks back from the water: cheaper rooms, less noise, still walkable to everything.
Cat Co beaches (1, 2, 3)
Resort strip 10–15 min by electric cart or motorbike from town; quiet, pricier, thin food options.
Viet Hai village
In the national park, reached by boat or a long walk; homestays only, no town amenities.
PracticalWhat a day costs, what to watch out for, and the pocket card
Practical
What a day costs, what to watch out for, and the pocket card
Cost per day
- Budget
- ₫600,000–1,000,000 (≈ US$25–40) excl. bed
- Mid
- ₫1,000,000–2,000,000 (≈ US$40–80) excl. bed
- High
- ₫2,000,000 (≈ US$80)+ excl. bed
Trip budget
| Guesthouse or hotel double room1 × 2 nights × ₫700,000 | ₫1,400,000 |
| Food, local transport, entries2 × 2 days × ₫1,200,000 | ₫4,800,000 |
| Hanoi–Cat Ba bus and ferry, one way2 × ₫320,000 | ₫640,000 |
| Lan Ha Bay small-group boat day with kayak and lunch2 × ₫900,000 | ₫1,800,000 |
| Motorbike rental, one day2 × ₫130,000 | ₫260,000 |
| eSIM, about a week of data2 × ₫250,000 | ₫500,000 |
| Buffer 10%Price creep, a taxi you did not plan, one splurge | ₫940,000 |
| Trip total≈ ₫2,585,000 per person per day, bed included | ₫10,340,000≈ US$400 |
2026 estimate in dong; flights excluded. Your choices stay in this browser.
Prices of common things
| Coffee or fruit smoothie | ₫25,000–50,000 (≈ US$1–2) |
| Noodle soup or rice plate | ₫40,000–90,000 (≈ US$2–4) |
| Seafood dinner at the marketAgree the price per kilo before cooking. | ₫150,000–350,000 (≈ US$6–14) |
| Beer: draught in a bar / can at a shop | ₫20,000–40,000 (≈ US$1–2) / ₫15,000–25,000 (≈ under US$1) |
| Motorbike rental, one day | ₫100,000–150,000 (≈ US$4–6) |
| eSIM or data SIM, about a week | ₫150,000–350,000 (≈ US$6–14) |
2026 estimate; check locally.
Watch out
Safety
- Meter taxis in Cat Ba town frequently cover the meter; agree a price first. Town to Cai Beo pier should be about ₫50,000 (≈ US$2), but drivers ask ₫200,000 (≈ US$8).
- Some ferry ticket sellers quote inflated prices or sell printed tickets above the official fare; buy at the pier counter.
- Boat tours sold in town vary widely in quality and group size — confirm the route, kayak inclusion and group size in writing before paying.
- Cat Ba town is a domestic resort strip: expect karaoke, touts and construction noise, especially Jul–Aug.
- The national park peak trail is slippery and muddy after rain; wear shoes with grip.
- Monkeys near Monkey Island and some beaches are habituated to food and will grab bags.
Emergency numbers
- Police
- 113
- Fire
- 114
- Ambulance
- 115
Pocket card
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Cat BaCát Bà
Pocket card · Voykit
My bed tonight
—
—
—
Làm ơn cho tôi đến địa chỉ nàyTo this address, please
Emergency
- Police113
- Fire114
- Ambulance115
Embassy
No embassies on Cat Ba; most are in Hanoi. The US and UK have embassies in Hanoi (check the address).
My embassy: —
Fare anchors (2026 estimate)
- Hanoi → Cat Ba, bus and ferry: about ₫320,000 (≈ US$13), 3.5–4 h
- Hai Phong → Cat Ba, bus 16C plus ferry: about ₫25,000 (≈ under US$1) total, 2.5–3 h
- Taxi Cat Ba town → Cai Beo pier: about ₫50,000 (≈ US$2); drivers may ask ₫200,000 (≈ US$8)
Say or show
- Xin chào — Hello (sin chow)
- Cảm ơn — Thank you (gam un)
- Bao nhiêu tiền? — How much is it? (bao nyew tien)
- Đắt quá — Too expensive (dat kwa)
- Tôi không ăn hải sản — I don't eat seafood (toy khong an hai san)
- Bến tàu ở đâu? — Where is the pier? (ben tau uh dow)
Ferry and bus timetables change with season and weather; confirm the day before you travel.
Deep diveWhat this guide covers so far, and its sources
Deep dive
What this guide covers so far, and its sources
Not a trip line yet
This is a basic guide: no airport-to-bed contract, walking clusters or day plans are published for Cat Ba. Airport, fare and schedule details are unverified; check the operators before you fly.
What we know, and what is coming
On this page
- Best months: Mar–Jun, Sep–Nov · avoid Jul–Aug (storms, peak domestic crowds), Dec–Feb (cool, grey, some boats idle) · month by month →
- 2 airports and 4 areas to sleep in
- Weather: a 7-day forecast and monthly averages
- Cost per day in 3 bands
- 5 day-trips, door to door
- 6 things to watch out for, with emergency numbers
Coming as the guide grows
- Airport-to-bed contract for HPH and HAN: last ferry and bus departures field-checked, taxi fallback, overnight rung.
- Four walking clusters with rescue anchors: Cat Ba town waterfront, Nui Ngoc side streets, Cat Co beaches, Viet Hai.
- Place pages with verified cutoffs (national park gate, Cai Beo pier, Ben Beo kayak wharf) and eat pages with last orders.
- Storm and hostile arrival fixtures so gates A–D can go green.