Con Dao 2026: Vietnam's Remote Island with Dark History and Clear Seas

Con Dao is an archipelago of 16 islands 230km southeast of Ho Chi Minh City. The main island, Con Son, is 57 sq km and has the only settlement — Con Son town, a former French and American penal colony that held Vietnamese political prisoners from 1862 through 1975. The prison complex is preserved as a museum.

The island is Vietnam’s most remote mainstream destination and deliberately less developed than Phu Quoc. A national park covers 80% of the land and marine area, protecting nesting green sea turtles, coral reefs, and dry forest. The diving here is considered the best in southern Vietnam.

What draws travellers to Con Dao

Con Dao attracts two distinct visitor types: travellers interested in the prison history and the war narrative, and travellers seeking diving, beaches, and turtle watching in a less-crowded setting.

The combination is unusual — a war history site and a nature reserve occupying the same island. Both aspects are handled seriously. The prison museum is one of Vietnam’s most significant historical sites. The national park’s turtle monitoring program allows night visits to watch turtles nest on the beaches (July–October).

Development and access

Con Dao is not easy to reach. Flights from HCMC (45 minutes) and Can Tho operate once or twice daily on small aircraft — booking in advance is essential. The limited access keeps visitor numbers manageable and the island retains a quiet, self-contained character.

The town is small. A single main road runs the southern coast. Most of the island’s interior is national park with no road access. Two or three days is the standard stay; a week is viable for diving and hiking.

Costs

Con Dao is not cheap. The limited accommodation options and remote supply chain mean food, accommodation, and activities cost more than mainland Vietnam.

Budget: ₫600,000–1,200,000 ($24–48) per day. Mid-range: ₫1,500,000–4,000,000 ($60–160). Luxury (Six Senses): ₫10,000,000–40,000,000+ ($400–1,600+). Diving: ₫800,000–1,500,000 ($32–60) for a 2-tank dive.

Seasons

The best diving and turtle season is July–October — warm, calm, and when nesting turtles are most active. October–February can bring rough weather from the northeast monsoon. The island is technically open year-round but dive conditions and beach accessibility vary.