Vũng Rô Bay

The bay is the natural border of provinces of Phú Yên and Khánh Hòa.

Vung Ro covers an area of 16.4 square kilometres (6.3 sq mi) and is surrounded by Đèo Cả, Đá Bia and Hòn Bà mountains from the north, the east and the west respectively.

In July 1966 the U.S. Army secured the area as part of Operation John Paul Jones and the 39th Engineer Battalion constructed a small port facility here to support U.S. Army operations in the area and relieve the logistical pressure on Tuy Hòa.

[3] The port facilities included two concrete Landing Ship, Tank (LST) ramps, a Navy cube causeway for barge off loading and a hardstand area, all of which were fully operational by 16 October 1966.

The hardstand area was enlarged and the side of a hill was cleared in order to provide fill material for a causeway.