The riff

The contrast between the materials, the shadows and the lines drawn by the light caught my attention while walking on the beach.
The fluidity of water, the curved geometry of the waves, the random trajectories of the spray, as opposed to hardness squared of concrete blocks, stiff and rough, human bulwark against the tide.
A doubt still assails my mind: is the sea to push against the cliff or the cliff delves into the sea as an outpost of human colonization?