Da Bia Mountain

Da Bia Mountain, also known as Thach Bi Son, is a 706-meter granite peak in Hoa Xuan Nam Commune, Dong Hoa Town, about 30 km south of Tuy Hoa in Dak Lak Province (formerly Phu Yen). Notable for a large flat rock resembling a stele on its summit, it overlooks Vung Ro Bay and the East Sea. The mountain is a recognized national scenic site and a symbol of Phu Yen, attracting hikers for its views and historical legend.

Visitors can expect a steep hiking trail through forest and rocky terrain leading to the summit of Da Bia Mountain. The trail is about 2-2.5 km one way with stone steps and natural paths. At the top, a large upright granite block resembling a stele offers panoramic views over Vung Ro Bay, Deo Ca Pass, the coastline and surrounding mountains. There are no major built structures except trail markers and a small shrine area near the summit.

According to local legend and historical records, in 1471 King Le Thanh Tong stopped at the mountain during his southern campaign and had an inscription carved on the large summit rock to mark the territory, giving rise to the name Thach Bi Son (Stone Stele Mountain). The site was later recognized as a National Scenic Site.

Da Bia Mountain is considered a symbol of Phu Yen and appears in local folk verses and poetry. The distinctive stele-shaped rock on the summit is a cultural landmark and a point of local pride, often featured in tourism promotion for the coastal region.