Karatsu Port Myoken Green Park stands as a notable example of 1980s Japanese harbor-adjacent landscape design. Located in Karatsu, Saga Prefecture, this public park and plaza was developed by Harbor Environmental Engineering and the Environmental Design Laboratory. The project exemplifies the period's commitment to integrating recreational spaces within port infrastructure areas. The park's design reflects thoughtful consideration of environmental planning principles, creating an accessible green space that serves both functional and aesthetic purposes for the local community. Its completion marked an important step in Karatsu's urban waterfront development, balancing industrial and leisure activities in a harmonious manner.