Tian Heng plank road, Tian Hengshan is the most beautiful place. This is a plank road around the mountain. You can see the ancient Penglai Pavilion complex in the distance, the white sails on the sea and the speedboats taking the wind and waves. Continue to see the beautiful beach, and you can pick up a lot of smooth stones in the cave next to it. Walking along the cliff along the plank road, the beautiful scenery of the sea has a panoramic view. The last step up, there will be a sign of the Yellow Sea and the Bohai Sea dividing line when you reach the top of the mountain. It is said that you can clearly see the dividing line here, because the colors of the two seas are different, but I didn't see it, I think it's all the same.