Qingdao, a coastal city on the Yellow Sea, is powering its marine economy with three engines. From China’s first factory-scale seawater hydrogen production project to China’s first fully domestically developed automated terminal, the construction of “China Health Bay” and a new maritime wellness experience tailored for senior citizens, Qingdao is exploring the high-quality development of the marine economy on a path that is green, smart, and closely linked to people’s well-being.