The Yin Yang Sea is a scenic coastal area located in Taiwan, known for its unique natural phenomenon where the colors of the sea and the sky create a striking contrast. The name "Yin Yang" refers to the balance of opposites, as the water often appears to have two distinct colors, resembling the traditional Yin Yang symbol. This visual effect is caused by the mixing of different water temperatures and sediment. Visitors to the Yin Yang Sea can enjoy breathtaking views, especially during sunrise and sunset when the colors are most vibrant. The area is also popular for photography and offers nearby attractions, including Keelung and Northeast Coast National Scenic Area, making it a favored destination for tourists exploring Taiwan's natural beauty.