Gem Well Lake, also known as “Ngoc Tinh” Lake, is located in front of the Thuong Temple complex (Co Loa Temple/An Duong Vuong Temple). The lake has a circular shape with a natural curve. In the past, the water flowed from east to west, connecting to the moat of the Inner Citadel, connecting to the moat of the two outer citadels and reaching the river wharf in the southeast of the Outer Citadel. In the middle of the lake is the Ngoc Well, lined with laterite. Near the shore in front of Nghi Mon, there is a mound of land called Hon Ngoc, corresponding to the “dragon’s jaw” position - a dragon holding a pearl. According to legend, this is the lake where My Chau - Trong Thuy often took a boat trip from here.

Gem Well Lake Relic

Currently, Ngoc Well Lake is a relic that attracts many tourists and local people to walk and play every day. However, there is a risk of unsafe conditions and drowning accidents for children without adult supervision.

People playing at Ngoc Well Lake relic

To prevent drowning accidents at Ngoc Well Lake relic, the Management Board of Co Loa relic site recommends that visitors and local people note the following:
- Absolutely do not bathe, swim, or catch fish at Ngoc Well Lake relic;
- Keep a safe distance when visiting, experiencing feeding fish, walking, playing... at Ngoc Well Lake relic;

- Children need to be accompanied by adults and supervised regularly;
- Children need to call adults immediately when they discover someone falling into the lake;
- Children should learn to swim early with the guidance of adults, so that children are not only healthy but also equipped with survival skills and drowning prevention;
Above are some recommendations to prevent drowning accidents at Ngoc Well Lake relic, hoping that visitors, parents, and students will equip themselves with the necessary knowledge and skills, and continue to widely propagate to relatives and people around.

MANAGEMENT DEPARTMENT OF CỔ LOA VESTIGE SITE