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Nam Du Islands travel guide: ferry, permits, costs, best season and where to stay

Nam Du is a small archipelago in the Gulf of Thailand that few foreigners reach, and the information online is scattered and often out of date. Competitor pages disagree on whether foreigners need a permit, how long the ferry takes, and whether electricity even works. This guide gives a verified, step-by-step answer for 2026: how to get there, what it really costs, when the sea is calm, whether to take a boat tour or go alone, and what the trade-offs are.

15 min read·Updated on October 21, 2026

Nam Du at a glance and whether it is worth the trip

Nam Du rewards travellers who accept basic infrastructure in exchange for empty roads, fishing-village mornings and a handful of genuinely pretty bays. It punishes anyone expecting Phu Quoc comfort.

Key facts

  • Location: Gulf of Thailand, southeast of Phu Quoc and west of Rach Gia.
  • Administration: now An Giang Province, Kien Hai special zone, communes An Son and Nam Du. Most sources and searches still say Kien Giang, so expect both names.
  • 21 islands, of which 11 are inhabited. Hon Lon, the main island, peaks at 309 m and holds what is described as Vietnam's highest lighthouse.
  • Population is quoted at 8,000 to 10,000, an approximate figure.
  • One paved ring road of about 12 to 15 km circles Hon Lon. Sources differ on the exact length.

Who it suits and who should skip it

Nam Du suits slow travellers, motorbike riders, people who like fishing-village life, and budget beach campers. It also suits anyone who has already done the classic Vietnam route and wants somewhere the bus crowds have not found.

Skip it if your trip is only two or three weeks and covers several regions. One experienced blogger explicitly advises against squeezing Nam Du into a tight itinerary. Skip it too if you want white-sand resort comfort or guaranteed clean beaches. The trash problem is real and visible.

How it compares

Phu Quoc is busy and developed, with resorts, international flights and a cable car. Con Dao is more protected, more expensive and harder to reach. Hon Son and Lai Son are similar to Nam Du but even less developed, and they pair well with it. One long-running blog compares Nam Du's landscape to the Aegean, while another likens its cliffs to Con Dao. Both comparisons flatter the island, but the geography is genuinely dramatic.

Permits, visas and rules for foreign visitors

This is the most contradictory topic in every existing guide, so treat it as a priority before booking.

Do foreigners need a special permit?

Historically, border-area restrictions kept foreigners out of Nam Du for roughly two of the first four years of tourism. One major travel site still states that a provincial public-security permit is required. Meanwhile, three independent blogs describe foreigners arriving on a normal ferry ticket, staying in registered guesthouses and riding motorbikes with no permit mentioned.

The practical reality in 2026: carry your passport, expect it to be checked at ticketing and at check-in, and confirm the current rule with the ferry operator or your accommodation a few days before you travel. Rules in border zones can change without notice.

What to carry

Passport, plus a printed or digital copy of your visa or e-visa. Cash, because there are no ATMs reported on the islands. Copies of ferry tickets. A power bank, since electricity supply has historically been unreliable.

Border-area sensitivities

Google Maps coverage of the island is incomplete because it is a sensitive area. Offline maps such as Maps.me work better. Drones are restricted near military sites in Vietnam, and part of the lighthouse road sits inside a military zone. One blogger flew a drone, but the safer advice is to leave it at home or check the rules carefully first.

Best time to visit Nam Du

Dry season versus rainy season

The dry season runs from November to April, with December to April the calmest and sunniest window. Rain and rough seas peak from May to October, and July to September is the worst stretch. Sources disagree on when the rain starts: Wikipedia says April, others say May or June. Treat late April and May as transition months with afternoon showers.

The Gulf of Thailand has its own rhythm. A November visit can still be wet, and one blogger had rain in early November. Book flexible transport if you travel in the shoulder months.

Weekdays versus weekends and holidays

Weekends and public holidays fill with Vietnamese visitors from the mainland. One long-time blogger recommends Monday to Friday for the whole trip. Upcoming dates to plan around from today: the New Year long weekend around 1 January 2027, Tet on 6 February 2027 with the main holiday week around it, and 30 April and 1 May 2027. Book ferries and rooms well ahead for those dates.

Ferry cancellations

Rough weather in the rainy season can cancel crossings entirely. Always build a buffer day before any onward flight.

Month Rain and sea conditions Ferry reliability Crowds Verdict
Nov Transition, some rain Moderate Low Acceptable with buffer days
Dec Drying, calm High Moderate Good
Jan Dry, calm High High around New Year Good, book ahead
Feb Dry, calm High Very high around Tet Good, book early
Mar Dry, calm High Moderate Excellent
Apr Hot, late showers High High around 30 Apr Good, book ahead
May Rain begins Moderate Low Possible, watch forecasts
Jun Wet Low Low Risky
Jul Wettest Low Low Avoid
Aug Wettest Low Low Avoid
Sep Wet Low Low Avoid
Oct Rain easing Moderate Low Possible late in month

How to get to Nam Du from Ho Chi Minh City, Can Tho and Phu Quoc

Step 1, reaching Rach Gia

Buses run frequently from Ho Chi Minh City and take roughly 6 to 7 hours. Flights to Rach Gia exist, but one blog reports only about two a week from HCMC, so check the current schedule before relying on them. Rach Gia now sits in An Giang Province after the administrative merger.

Step 2, the ferry from Rach Gia

Operators named across competitor pages include Superdong, Phu Quoc Express, Ngoc Thanh and Hoa Binh. A direct crossing takes about 2 to 2.5 hours. Prices run about 205,000 to 250,000 VND ($8-10) one way, with the more comfortable catamaran-style boats at the top of the range.

Some sailings call at Lai Son or Hon Son first, which stretches the trip considerably. One competitor's table quotes 5 h 15, and that almost certainly reflects a multi-stop sailing. Always confirm your departure is direct.

Departures are usually in the morning, and returns run from late morning to midday. Most operators run one round trip per day, so a same-day return is not realistic. Book online in advance for weekends and holidays, and be careful with unofficial booking websites.

Step 3, from Hon Son or Lai Son

Hoa Binh runs a limited morning service from Hon Son, around 100,000 VND, and not daily. Superdong links Rach Gia, Lai Son, Nam Du and back. Island-hopping Hon Son, Lai Son and Nam Du is possible but requires checking schedules carefully.

What about Phu Quoc?

Nam Du looks close to Phu Quoc on a map, but no competitor describes a direct passenger service between them. State this plainly: there is no confirmed Phu Quoc to Nam Du ferry, so check locally before planning that route. Phu Quoc to Rach Gia fast boats do exist.

A night in Rach Gia

Useful before an early ferry. One budget hotel next to the port costs about 180,000 VND and offers motorbike parking. Taking a motorbike on the ferry is not worth the cost.

Starting point Transport to Rach Gia Ferry Total time Approximate cost
Ho Chi Minh City Bus, 6-7 h 2-2.5 h Full day 400,000-600,000 VND
Can Tho Bus, 3-4 h 2-2.5 h Half to full day 350,000-500,000 VND
Phu Quoc Fast boat to Rach Gia 2-2.5 h Full day Check locally
Hon Son Hoa Binh morning boat About 100,000 VND Half day Limited schedule

Getting around the islands

Motorbike rental

Rentals cost about 150,000 to 200,000 VND ($6-8) per day, usually including fuel, arranged through your accommodation. The roads are steep, narrow and dusty, especially the climb to the lighthouse viewpoint. Only confident riders should attempt it, and check whether your travel insurance actually covers motorbikes.

Xe om, walking and accommodation pickups

Xe om drivers wait at the pier, and most hotels offer pickup. One blogger walked the full loop, about 12 km, and reported serious sunburn. It works only in cool conditions and with an early start. The ring road takes about 20 minutes to ride without stops.

Boats to other islands

Group boats leave from the main pier, private boats can be hired there, and tours are booked through accommodation. Details follow in the outlying islands section.

Exploring Hon Lon: the coastal loop, clockwise

Bai Tret (Cu Tron) port village

The pier, a Ba Chua Xu temple under a banyan tree, mini-markets, seafood restaurants and the main cash and supplies stop. Plastic pollution around the port is noticeable.

Southeast bays: Bai Soi, Phong Vu, Humiso

Pebbly and scenic, with visible trash. Best for lunch and drinks. Phong Vu is the best of the three for swimming.

Southern tip viewpoint

A short stop with a view across the Nom islands.

Bai Cay Nho and Bai Cay Men

The most praised beach on the island, with white sand, palms, a roped swimming area and basic shacks. Camping is possible, with older sources quoting fees of 30,000 to 40,000 VND, so verify on arrival. The southern end of the beach collects trash.

West coast, Dinh Nam Hai Ngu Than and Bai Ngu

The whale temple holds a roughly 14 m skeleton found in 2017. Whale worship, known as Nghinh Ong, is a genuine coastal tradition here. Bai Ngu fishing village has houses built around coconut trees. Currents are strong and exit points are limited, so do not swim here.

The lighthouse road and viewpoints

The highest lighthouse sits in a military zone and the top is closed. Stop at the halfway clearing for the view instead. Do not pay anyone to bypass the restriction. The Nam Du Palace viewpoint looks over Dat Do beach.

What is closed

Parts of the north are inaccessible by road. An older source mentions a pre-dawn trail to Nhum beach, but verify its current condition locally.

Beach Sand type Swimming Facilities Trash level Best time
Cay Men White sand Roped area, good Basic shacks Some at south end Morning
Phong Vu Pebbly Best of southeast bays Drinks, lunch Visible Midday
Bai Soi Pebbly Limited Basic Visible Lunch stop
Bai Ngu Rocky Not advised Village Moderate Sunset
Hon Mau (Chuong) White sand Good in calm Tour boats Low Day trip

Outlying islands and boat trips

Typical stops

Hon Mau and Bai Chuong, the white sand beach and the most famous stop. Hon Dau, with coconuts and camping. Hon Ngang, the island with most of the population and no vehicles. Hon Hai Bo Dap, where snorkelling happens and a natural land bridge appears only at low tide.

Honest assessment of snorkelling

Competitors describe it as fun but not impressive, and some coral is degraded. Set expectations accordingly.

Half-day versus full-day tours

A half day covers one or two islands with a swim stop. A full day adds lunch, more snorkelling and Hon Ngang. Weather decides whether boats go at all, so keep a spare morning.

Private boat

Hire at the pier, negotiate the route directly, and check that life jackets are on board before leaving.

Tour or independent visit?

Independent is the default

Hon Lon is easy to explore alone because there is a single ring road. Book the ferry yourself, rent a motorbike locally, and ride the loop at your own pace.

When a boat tour makes sense

For the outlying islands there is little alternative. Book through your accommodation, choose a group tour for lower cost or a private boat for flexibility.

What to avoid

Package tours from the mainland add little, since the key variables are the ferry and the weather. No agency recommendation is needed for a trip this simple.

Factor Independent Organised tour
Cost Lower Higher
Flexibility Full Fixed schedule
Islands reached Main island only Outlying islands
Weather dependence You decide Operator decides
Best for Confident riders, slow travel First-timers, groups

Where to stay and eat

Where to base yourself

Near the port in Bai Tret you get the most food and services, plus noise and trash. The southeast coast has mini-resorts such as Humiso and Phong Vu. The west coast has Meta Sea Resort for sunsets. Hilltop options include Nam Du Hill. For budget, Ty Hoa guesthouse is the cheapest according to one blogger, and Nam Du View guesthouse has reported noisy karaoke. Homestays exist on Hon Ngang and Hon Mau.

Overall prices run 100,000 to 500,000 VND ($4-19), with mid-range rooms typically 265,000 to 300,000 VND. Prices rise at weekends.

Camping

Cay Men and Hon Dau allow camping, with low fees from older sources. Bring your own trash bag and expect minimal facilities.

Booking tips

Book ahead for weekends. Check whether the room has air conditioning, hot water and a generator backup. Ask about pickup. There are no hostels on the islands.

What and where to eat

Specialties include blue bonefish (xuong xanh), grilled scallops, steamed squid with ginger, oysters grilled or in porridge, and cobia hotpot. Port-side seafood restaurants and the evening snack market are the main options, with cafes such as Nam Du Hill for coffee. Expect prices about 30% above mainland levels, and seafood is priced by weight, so confirm the price before ordering.

Costs and entrance fees

Entrance fees

No competitor reports an island entrance fee. Expect small charges instead: beach huts, chairs and camping fees.

Sample daily budget

Category Budget Mid-range Comfort
Room 100,000-200,000 VND 265,000-300,000 VND 400,000-500,000 VND
Ferry share 205,000-250,000 VND Same Same
Motorbike 150,000-200,000 VND Same Same
Food 100,000-150,000 VND 200,000-300,000 VND 350,000+ VND
Boat tour 200,000-300,000 VND Same Private, higher

Cash

Bring enough cash for the whole stay. ATMs and card acceptance are limited, and this has been the case for years.

Safety, health and responsible travel

Swimming

Roped areas such as Cay Men are generally fine in calm weather. Avoid rocky spots with currents or no exit, such as Bai Ngu and village docks. Do not swim alone off rocky shores or from piers.

Motorbike and road risks

Steep gradients, loose gravel, occasional wet conditions, and a relaxed helmet culture on the island. Wear a helmet anyway, and check that your insurance covers motorbikes and that your licence is valid in Vietnam.

Sea travel

Crossings can be rough, seasickness is common, and life jackets should be visible. Ferry cancellations happen in bad weather.

Health

The sun is strong, and one blogger reported severe sunburn. Dehydration is a real risk. Medical facilities are limited, and serious cases need evacuation to the mainland. Bring mosquito protection.

General safety for visitors

The island is low-crime. Vietnam is generally considered safe for tourists, with petty theft and traffic the main risks. US citizens need an e-visa, and all travellers should check their government's current advisory.

Environmental responsibility

Trash and plastic are genuine problems, and a landfill has been carved out of western forest according to the last detailed report. Bring a reusable bottle, take litter off the beach, avoid single-use plastic, and do not walk on coral.

Infrastructure changes

Older sources report generator power, while a January 2026 source reports constant electricity and paved roads. Expect improvement but bring a power bank as backup.

FAQ

Q: How long does it take to get to Nam Du from the mainland? The Rach Gia ferry takes about 2 to 2.5 hours on a direct sailing. Add the bus or flight to Rach Gia, so door-to-door from Ho Chi Minh City is roughly a full day. Some sailings stop at Lai Son or Hon Son first, so check before booking.

Q: Do foreigners need a permit to visit Nam Du? Older sources describe a border-area permit, but recent independent travellers report buying a normal ferry ticket and staying in registered guesthouses. Carry your passport and confirm with the ferry operator or accommodation before going.

Q: What is the best month to visit Nam Du? December to April is the calmest and sunniest. The rainy season, particularly July to September, brings rough seas and cancelled ferries. Choose weekdays to avoid crowds.

Q: Which month should be avoided for Phu Quoc, and does the same apply to Nam Du? Phu Quoc is wettest around July to September, and Nam Du sits in the same Gulf of Thailand climate zone. Both are best from about November or December to April.

Q: Is it safe to swim in the sea around Nam Du? Roped swimming areas such as Cay Men are generally fine in calm weather. Avoid rocky spots with currents or no exit, such as some village docks. Check conditions locally and avoid swimming alone.

Q: Can Nam Du be done as a day trip? Not realistically. Sailings usually leave in the morning and return around midday, so at least one night is needed. Two nights allow a motorbike loop and a boat trip.

Q: Is it safe for Americans to visit Vietnam now? Vietnam is generally considered safe for tourists, with petty theft and traffic the main risks. US citizens need an e-visa, and travellers should check their government's current advisory and take travel insurance that covers motorbikes.

Practical notes before you go

Verify the foreigner permit status with your ferry operator. Confirm your sailing is direct and not via Lai Son or Hon Son. Check the flight schedule to Rach Gia if you plan to fly. Ask whether any entrance or environment fee applies. Confirm ATM availability before leaving the mainland, since reports vary. Ask your accommodation for current tour prices, as no competitor publishes them. Check the landfill and pollution situation on arrival. Treat all distance figures as approximate, because sources conflict. And confirm locally whether a Phu Quoc ferry now exists, since the situation may have changed by the time you travel.