Looking at the current situation of environmental restoration in the Ariake and Yatsushiro Seas, progress has not gone as smoothly as expected. Here, I would like to introduce the background, timeline, and objectives of the "Public-Private Cooperation Forum for Kumamoto Coastal Zone Restoration," created as a place for various people and organizations relating to Kumamoto Prefecture to discuss the prefecture's coastal zone environment and coastal zone development, conducted in harmony with disaster prevention.