2030. 3.4 Restoration of coastal ecosystems including mangroves covering 1,000ha. (this action is linked to action 1.6 of the Biodiversity Sector NDC 1). 2030. NDC 4. Identify and declare coastal and marine natural areas of high priority for building resilience for climate change impacts. 2027. 4.1 Prepare appropriate criteria and list of candidate sites to be declared as high priority natural areas. 2025.