Da Dia Rapids is another natural wonder in Phu Yen that shouldn't be missed. It is a series of rock formations that resemble giant plates stacked on top of each other. The rapids are formed by the volcanic activity in the area, creating a unique and mesmerizing sight. You can take a walk along the rapids, marvel at the geological formations, and enjoy the sound of rushing water. Visiting Da Dia Rapids is a great way to connect with nature and experience the beauty of Phu Yen.