Synectics team have finished Japanese Bridge (Koi Bridge) in Quang Ninh. Located in the amusement park and at the top of the three passes of Sun World Ha Long complex, there is a red bridge that bends on the green background of Japanese garden. This 2-story bridge is called the Koi Bridge because of the shape of the Koi fish or also known as the bridge of yin and yang, the upper bridge is positive, the lower bridge is the negative symbol for the connection of yin and yang harmony in Japanese culture.