The project is based on my thoughts about the boundary between sea and land. The gravel in the soil is cracked by hitting each other under the lap of the waves, thus forming a new state. In order to let the negative and the seawater fully interact, I soaked the negative in the seawater took from the shooting location. So that the salt and minerals in the seawater are able to remain on the negative. During the development, sea salt and minerals that stay on the negative produce chemical reactions with chemistry and silver halides.