Cù Lao Ré volcanic islands

Cù-Lao Ré is a volcanic field northeast of Quảng Ngãi, Vietnam. The field consists of 13 volcanic cones; four subaerial and nine submarine. Three of the subaerial cones formed the Cù-Lao Ré Island, while the fourth one formed the Cù-Lao Bai Island.

Map of C%C3%B9 Lao R%C3%A9 volcanic islands, An H%E1%BA%A3i, L%C3%BD S%C6%A1n, Vietnam

The Culao Re islands were used as a geographical landmark for navigation by Admiral Zheng He's crew during the 15th-century treasure voyages.