Ancestors selected sites with underground water sources, stacking stones to create wells, settling tanks, and channels for domestic use and agriculture. (Photo: VNA)

Thanks to the fresh underground water from the ancient wells, locals cultivate the renowned, clean watercress variety. (Photo: VNA)

A distinctive feature of the Gio An ancient wells is their stone-stacking construction to tap underground water for daily life and farming. (Photo: VNA)

Many visitors come to explore and experience the Gio An ancient well system. (Photo: VNA)

Cool, crystal-clear water at an ancient well. (Photo: VNA)

Source: VNA