Cay Dua Prison

Cay dua (Coconut tree) prison, about 5 km from An Thoi and covering an area of 40 ha was the largest prison of the U.S. forces that held tens of thousands Vietnamese soldiers and civilians.
The prison was built by the French just before the World War II and during the Vietnam war became a notoriously vile detention camp spread over 40ha. It is now an official heritage site with a magnificent commemorative monument.