A seashore covered in concrete

Recently I took a day trip to Iwaki with my in-laws. We ended the afternoon on the top floor of a 1980s hotel in a cafe which had the clever idea of placing sand on the floor below the tables that face out on the coast. On closer examination, I realized that both the small hill and the seashore are covered in concrete.

The view reminded me of Alex Kerr’s Dogs and Demons about how the institutional forces that lead the government to degrade the countryside and the environment. On the one hand, pouring concrete on the hillside protects the houses below, and presumably what look like huge concrete children’s jacks on the shore prevent flooding. But did they need to build houses on such perilous land, or was the lure of construction profits and kickbacks too great to pass up?