Ghenh Da Dia in Tuy An District, Phu Yen Province is categorized as one of the natural wonders of Central Vietnam, as the rocky plate reef 50 meters wide and over 200 meters long is constituted by thousands of basalt columns. The reef was recognized as a national heritage site in 1998.
Ghenh Da Dia is a must-visit destination for tourists, as in addition to looking like a giant beehive arising from the turquoise waters; the area is also beautified by clean beaches and various fishing boats bobbing on the sea.
Ghenh Da Dia can be reached by driving or riding more than 30 kilometers from Tuy Hoa Town along National Highway 1 to Tuy An District. From there, you travel another ten more kilometers past paddy fields before you arrive at the reef.