Sea　water　curing　(SWC,　20　±　2　°C)　has　been　proposed　to　obtain　economic　benefits　for　green　artificial　reef　concrete　(GARC)　in　coastal　areas.　This　study　evaluated　the　feasibility　of　SWC　based　on　the　mechanical　properties　and　permeability　resistance　of　GARC.　Three　curing　regimes　were　used:　SWC　(20　±　2　°C),　standard　curing　(SC,　90–95%　relative　humidity　at　20　±　2　°C),　and　fresh　water　curing　(FWC,　20　±　2　°C).　The　results　showed　that　there　were　little　effects　on　compressive　strength　and　splitting　tensile　strength　of　GARC　under　the　three　curing　regimes.　In　addition,　SWC　slightly　increased　the　permeability　of　GARC.　SWC　appeared　to　be　an　effective　technique　to　cure　GARC　in　marine　environments,　which　was　further　confirmed　by　evaluating　the　microstructure　using　environmental　scanning　electron　microscope,　X-ray　diffractometer,　and　pore　structure　analyzer.　©　2018　Elsevier　Ltd