Located in An Ninh Dong Commune, Tuy An District, Phu Yen Province, Ghenh Da Dia is strangely structured rocks include large upright stones equally arranged in a star pattern, an undeniable destination for anyone who aims to make a memorable tour to Vietnam.

Being a riddle of nature, like a giant jigsaw, the rapids is irritatingly made of the same shaped pieces, and forms a solidified structure that has proved more than just a curiosity for thousands.

The stones in Ganh Da Dia are bazan stones of dark black and light yellow. There exists large stones of tons and small stones with different shapes: round, pentagon, polygon and so on.

Have been listed as a National Heritage Site by the Ministry of Culture and Information, Ganh Da Dia is a potential tourist attraction to both domestic and foreign visitors./.