Also known as Turtle Lake, there is a very small island resting in the lake with a small structure. It is said this island was put in place for the turtles in the lake to have a place to surface and rest. There is also a story which entails a time ago, a family buried their fortune on the little island in the lake because they knew it would be safe from others since boats are prohibited in the water as the lake is next to the Ngoc Son Temple.