Other "siblings" of Ghenh Da Dia (Disk Rock Reef) discovered in Phu Yen.

Ghenh Da Dia (Disk Rock Reef) is located in An Ninh Dong commune, Tuy An district, Phu Yen province. It's a famous tourist destination known for its unique rock formations, found only in some Southeast Asian countries and considered rare worldwide. Viewed from above, the rock formations resemble giant wasp nests, most notably the hexagonal columns that look like stacks of plates.

For many years, people thought that Ghenh Da Dia (Disk Rock Reef) in Phu Yen was the only scenic spot in Vietnam with such a rock formation. However, the province recently announced the discovery of four other locations that also possess unique rock formations, creating a "sister" system to Ghenh Da Dia and forming several new tourist destinations.

First is Hon Da Dia, located near the shore in Nhon Hoi village, An Hoa commune, Tuy An district. Locals call it Hon Yen (Swallow Island) because swallows used to swarm the entire island. This is a small island, about 70 meters high and 200 meters in diameter, with a surface entirely covered in rocks. The outer surface of Hon Yen has a structure similar to Ghenh Da Dia (Disk Rock Cliff), which is extremely beautiful.

Also in Tuy An district are two other "siblings" of Ghenh Da Dia (Disk Rock Reef). These are the Da Dia Waterfall area, including Song Gorge (also known as the Twin Waterfall or Husband and Wife Waterfall) and Hom Gorge (also known as the Single Waterfall). The waterfalls here all have pools, surrounded by stunning disc-shaped rock formations. The pools are not very large or deep, and swimming is possible during the dry season.

Third is the Da Dia Stream in An Xuan commune, Tuy An district, with the Tra Coi gorge, valley, and Da Dia cliff in Zone 7. Although it's a "neighboring" area with Da Dia waterfall, the structure isn't exactly the same, but it still possesses unique and distinct landscapes. However, compared to the two above, this place is still quite pristine and undeveloped for tourism.

Finally, there's the newly discovered Disc Rock Hill in An Phu commune, Tuy Hoa city. The hill was exposed during quarrying, revealing massive disc-shaped rock walls just half a meter above the ground. Countless different structures exist here, creating many unique shapes, and even the colors vary. After learning about this, provincial leaders ordered a halt to construction to invite experts for research and develop a suitable plan.

Thus, from a solitary Ghenh Da Dia (Disk Rock Reef), it now has many other "siblings" distributed throughout Phu Yen. It seems that hidden deep beneath the layers of soil in this region lies an entire geological park of disc rocks, dormant and waiting to be awakened and explored. The tourism potential already present in this province now has even more opportunities for development.

According to geological research

Ghenh Da Dia (Disk Rock Reef) is a basalt rock formation created during volcanic activity in the Van Hoa plateau (Son Hoa district), about 30 km away as the crow flies. Nearly 200 million years ago, lava erupting from the volcano met cold seawater, solidified, and caused stress and fissures throughout the massive rock mass. The rock fractured along vertical lines, forming vertical or slanted columns, while horizontal cracks cut the columns into many sections.

Yuan Bao