Haihe cruise boat is the most refreshing experience of this trip to Tianjin. As the cool wind blows, the beautiful scenery of both sides of the Taiwan Strait comes into view, and various modern buildings and rivers intersect with each other, as well as the magnetic voice of the lecturer, which is unforgettable. It is suggested that fewer people go during the day and the beautiful scenery can be seen clearly. There are many people in the evening, so we have to wait in line.