Vietnam
Con Dao
Vietnam's heaviest history and its emptiest beaches, on one small island.
An archipelago of sixteen islands off Vietnam's southern coast, Con Dao spent more than a century as the country's prison colony: the French bagne at Poulo Condore and, later, the tiger cages that became one of the war's defining images. The same island holds a national park of jungle ridges, empty bays and nesting green turtles, with the old French grid of Con Son town in between. It is one of the very few places in Vietnam where the hard history and the best beaches are the same trip.
Suggested stay
3–5 days
Language
Vietnamese
Currency
VND
Timezone
UTC+7
Why you'll love Con Dao
The camps Phu Hai's cell blocks, the tiger cages and Hang Duong Cemetery are preserved rather than restaged, and they are the reason most Vietnamese come.
The beaches Dam Trau, Bai Nhat and the long sweep at Dat Doc stay close to empty even in the settled months, which is almost unheard of in Vietnam now.
Under water the reefs sit inside a national park, with some of the healthiest hard coral left in Vietnamese waters and seagrass beds that still hold dugongs.
The turtles green turtles haul out to nest on Bay Canh, and the park runs overnight watches from a ranger station on the beach itself.
Best time to visit
Dec-Apr
28-32° days
8.683° N, 106.600° E
UTC+7 · Asia/Ho Chi Minh
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Weather & when to go to Con Dao
Month by month: typical highs and lows, rainfall and rain days.
✓ Best Dec-Apr
Diving prime Mar-May
Activity seasons none fair good prime
Watch for Jun-Oct monsoon flooding risk · Jul-Oct typhoons risk
Cards tinted by calculated verdict · big number = typical daily high, small = low · hover for conditions
When to avoid Con Dao
Jun-Oct is the southwest monsoon: heavy rain, and a sea rough enough to close the boat trips to the outer islands and cancel ferry sailings at short notice. The caveat is that it is also when the turtles nest, which is why some people come anyway.
Top things to do in Con Dao
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Con Dao Prison (Phu Hai) - the oldest camp on the island
history culture arts 👍 PopularThe largest of the French-built camps, with communal halls, shackle rails running the length of the floor and a chapel added for the benefit of inspectors. Mannequins fill the cells, which some visitors find heavy-handed and others find the only way to read the scale of it.
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The tiger cages - Phu Tuong and the American-era cells
history 👍 PopularRoofless stone pits with bars overhead, so guards could look down on the prisoners below and drop quicklime through. The French cages were kept off every inspection route for thirty years; the later US-era cages a short walk away are a different, low-roofed design.
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Hang Duong Cemetery - Vo Thi Sau's grave after midnight
history culture arts ⭐ Highly recommendedThousands of prisoners are buried here, most of them without names. Vietnamese visitors come for the grave of Vo Thi Sau, executed on the island at nineteen, and the ritual is to arrive after midnight, dressed in white, with offerings of mirrors and combs.
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Dam Trau Beach - aircraft low over the sand
nature wildlife scenic ⭐ Highly recommendedThe best strip of sand on Con Son, tucked under a headland at the end of the airport road, with turboprops passing low overhead on their approach. Soft sand, shade at the back, and quiet outside the middle of the day.
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Bay Canh Island - green turtles nesting on the park beach
nature wildlife 👍 PopularThe archipelago's main rookery, run by the national park on a permit system with a capped number of overnight visitors. Groups sleep at the ranger station and are woken when a female hauls out; hatchling releases happen at first light.
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Con Dao's reefs - diving inside the national park
divingDive sites ring the outer islands, with hard coral gardens, turtles on the sand flats and seagrass beds that still hold a small dugong population. Conditions are entirely sea-state driven, so boats get called off at short notice.
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So Ray plantation trail - macaques and the view over Con Son
hiking nature wildlifeA short climb out of town through the forest to an old French plantation clearing, where long-tailed macaques and the endemic black squirrels come for fruit and the ridge opens over the bay and the town grid.
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Ong Dung Bay - the jungle path to a boulder beach
hiking nature wildlifeA shaded walk of about twenty minutes from the national park headquarters drops onto a bay of rounded boulders with reef visible offshore at low tide. There is no shade on the stones themselves, so it is a morning trip.
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Van Son Tu Pagoda - the island's temple above the lake
culture arts scenicA hillside pagoda, known locally as Nui Mot, looking down over An Hai lake, the lotus pond and the whole of Con Son town. The steps up are the easiest viewpoint on the island to reach.
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Con Dao Museum - the archipelago in sequence
history culture artsThe museum near the seafront lays out the islands' natural history and then the prison system in order, and it is the easiest place to get the chronology straight before walking the camps themselves.
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Cau Tau 914 - the pier the prisoners built
historyThe stone jetty on the town seafront, named for the number of prisoners said to have died building it. It is now where locals sit out the evening, which takes some adjusting to.
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Ma Thien Lanh Bridge - the bridge that was never finished
historyTwo stone abutments standing in the pass on the road south, left exactly where the work stopped, with a memorial to the prisoners who died on the job. Five minutes off the bike, and the most eloquent ruin on the island.
Best areas to stay in Con Dao
$ Budget $$ Mid-range $$$ Premium
Con Son town centre
History first $$Sleepy French grid facing the sea
Explore hotels in Con Son town centre →
An Hai beachfront
Beach near town $$Quiet shorefront road below the town
Explore hotels in An Hai beachfront →
Bai Dat Doc
Resort seclusion $$$Long private-feeling bay under the hills
Explore hotels in Bai Dat Doc →
Co Ong and Dam Trau
Near the airport $$Scattered stays near the airport beach
Explore hotels in Co Ong and Dam Trau →
Live nightly prices from Booking.com, Agoda and others, centred on Con Dao
Getting to & around Con Dao
Getting there
Fly into Con Dao (VCS) on a turboprop from the mainland, then about twenty minutes down the coast road into Con Son town.
Flight
Con Dao Airport (Co Ong) (VCS)
The airstrip sits at the northern end of Con Son island, roughly 15 km from town. Hotels meet almost every flight with a shuttle, and the small fleet of taxis and waiting cars covers the same twenty to thirty minute run down the coast road past Dam Trau.
Flight
Con Dao Airport
Short turboprop hops from Ho Chi Minh City are the normal way in. The runway is short and the aircraft small, so the baggage allowance is tighter than on a mainland domestic flight and seats sell out well ahead in the dry season.
Ferry
Ben Dam port
High-speed ferries cross from Tran De in Soc Trang, the shortest mainland run at a few hours, with a longer sailing from Vung Tau. Both are cancelled outright when the sea gets up, so never make one your last connection.
Getting around
Rented motorbike
The standard way around. One coast road runs the length of Con Son island and the whole thing is an easy afternoon; every guesthouse arranges them.
TBC
Bicycle
Enough for the town itself - the camps, the museum and the cemetery are flat and close together.
TBC
Taxi
A small fleet working the town and the airport. Ring ahead rather than expecting to flag one down once you are outside Con Son.
TBC
Walking
Con Son town is small enough to cross on foot, and the full prison circuit can be walked in a long morning.
Free
Park boat
The only way to the outer islands, running from Ben Dam or the town pier with the national park or a licensed operator. First thing cancelled in bad weather.
TBC
Day trips from Con Dao
Bay Canh Island
1-2 daysTurtle nesting beach
The archipelago's main green-turtle rookery, run on a park permit with a capped number of overnight places at the ranger station, plus a hot walk up to the old French lighthouse on the ridge. Nesting runs roughly Jun-Sep, which is also the wettest and roughest part of the year - that trade-off is the whole planning problem on Con Dao.
Getting there
ferry | tour
About 1 hr by park boat from Ben Dam, normally staying overnight
Hon Tai and the eastern islets
Half daySnorkelling islets
Small islands off the east side with shallow hard-coral gardens and clear water over sand, taken as a half-day run with two or three snorkelling stops. Entirely sea-state dependent; in the monsoon these trips simply do not sail.
Getting there
ferry | tour
30-45 min by boat from the town pier
Hon Cau
Full dayIsolation island
A wooded island with a freshwater spring, used to hold prisoners in isolation away from the main camps, with a good snorkelling beach on the sheltered side. Usually visited as part of a boat day with the other islets rather than on its own.
Getting there
ferry | tour
About 1 hr by boat from Ben Dam
Ben Dam and the south coast
Half dayCoast road loop
The road south climbs over the pass past the Ma Thien Lanh abutments and drops to the working fishing port at Ben Dam, with the Shark Bay lookout and Bai Nhat - a beach that only exists at low tide - on the way. The best half day on the island for anyone who likes a road.
Getting there
car
About 40 min each way by motorbike from Con Son town
A little history of Con Dao
The archipelago was a prison before it was anything else. The French took the islands in 1861 and opened a penal colony the following year, and for the 113 years that followed - through the French administration, then the Republic of Vietnam with American advisers - Con Dao was where the state sent the people it most wanted out of sight. Something like twenty thousand prisoners died here, most of them buried without names at Hang Duong.
Ton Duc Thang, Le Duan, Le Duc Tho and Pham Van Dong were all held on the islands at some point, which is why Con Dao sits in Vietnamese memory somewhere closer to a shrine than a museum. The camps closed with the war in 1975, the buildings were left standing, and the whole complex is now a national relic site walked by far more Vietnamese visitors than foreign ones.
The English East India Company builds a fort on the islands it calls Poulo Condore; its Makassar garrison revolts and destroys it three years later.
French naval forces occupy the archipelago.
The penal colony opens. Poulo Condore becomes the standard destination for political prisoners from across Indochina.
The tiger cages are built at Phu Tuong: roofless pits with bars overhead, kept off every inspection route.
Vo Thi Sau is executed on the island at nineteen and buried at Hang Duong.
American congressional staff are taken to the tiger cages; the photographs reach the US press and the cages become an international scandal.
The last prisoners are freed as the war ends and the camps close.
The islands' forests and surrounding waters are placed under protection, in what becomes Con Dao National Park.
Know before you go
Payment
Cash preferred
English
Limited
Wifi
Workable
Power
Type A / B / C
230 V, 50 Hz
Dialing
+84
Monsoon flooding risk in this window; check current conditions before you go.
Typhoons risk in this window; check current conditions before you go.
The months our climate read flags to avoid: the wettest, lowest-rated weather of the year.
Mobile network & SIM card
Get an eSIM before you fly
A Vietnam eSIM installs in minutes and works the moment you switch off flight mode. No SIM swap, no roaming bill.
FAQs about Con Dao
▸ When is the best time to visit Con Dao?
Dec-Apr is the settled stretch: dry, calm water, and the boats to the outer islands actually run. Jun-Oct is the southwest monsoon, with heavy rain and seas rough enough to cancel ferries and day trips at short notice. May and Nov are transition months and can go either way.
▸ Is Con Dao worth it if I am not interested in the prison history?
Probably not on its own. The beaches are genuinely quiet and the diving is among the best in Vietnam, but it takes a flight or a long ferry to get here and the island is small. The people who leave disappointed are usually the ones who came only for a beach and found the history unavoidable - it is the centre of the place, not a side trip.
▸ How many days do I need?
Three days covers the camps, the museum and the cemetery at a reasonable pace with time left on the beaches. Add a day or two for a boat trip to the outer islands, and build in slack in case a sailing is cancelled.
▸ Can I see the turtles nesting?
Only in the nesting season, roughly Jun-Sep, and only on a national park permit with a fixed number of overnight places at the Bay Canh ranger station. That window is also the wettest and roughest part of the year, so it is a deliberate trade rather than something you bolt onto a dry-season trip.
▸ Should I fly or take the ferry?
Fly if you can. The crossing is long, the sea is unreliable for much of the year and cancellations are common, while the flight is a short turboprop hop. If you do take the ferry, leave a spare day at the end rather than connecting straight into another booking.
▸ Is Con Dao expensive compared with the rest of Vietnam?
Yes, relatively. Getting here is a flight or a long ferry, almost everything on the island is shipped in, and the accommodation runs from simple guesthouses to one of the most expensive resorts in the country with fairly little in between.
▸ Do I need to book boat trips in advance?
The overnight turtle watch, yes - the park caps numbers and it fills. Day snorkelling trips can usually be arranged a day ahead through your guesthouse, but nothing sails when the sea is up, so keep the plan loose either way.
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