Con Son Island is one of an island group of the same name consisting of 13 volcanic islands and islets about 60 miles (100 km) southeast of the southern tip of Vietnam in the South China Sea. The island, 13 miles (21 km) long and 5 miles (8 km) wide, is well wooded and has an indented coast. It has also been known as Penitentiary Island because it was used for political prisoners and features an old French East India Company fort. In 1787 the islands were ceded to France by Nguyen Anh, later the emperor Gia Long.
There are no cruises currently listed for this port of call.