Our oceans are home to many wildlife species, including Chinese white dolphins, finless porpoise and horseshoe crabs, but only 5% of the waters are designated or planned marine protected areas. We urge the government to implement a roadmap to increase coverage of effectively managed marine protected areas (MPAs) to cover 30% of Hong Kong waters by 2030, a globally accepted target that is scheduled to be adopted at the upcoming Convention on Biological Diversity COP15 hosted by China.