During the last 100 years Japan's coastal zones have experienced three critical points, as we put our coastlines through rapid change. Thankfully, we managed to come through the first two crises without damaging the coastal zone environment and its community critically. However, the third crisis, to which we are progressing, is the crisis of decline in our environmental consciousness. Specific action is required in terms of reviewing how we create cooperative coastal communities and how we are to establish effective management systems to support those wishes.