Cargo ship sailing on the calm sea off the coast of uMhlanga, Durban during the day

cargo ship sea ocean maritime transport shipping calm sea durban umhlanga south africa coastline nautical marine trade logistics international shipping freight transport cargo vessel water transport maritime blue water horizon distant ship commercial shipping sea journey transport industry oceanic sunny day clear sky navigation merchant ship seafaring global trade marine vessel sea freight blue ocean peaceful industry commerce container ship bulk carrier international trade shipping lane maritime route waterway coastal transoceanic import export