boat dock at rubiah island in sabang, indonesia. stack of sandbags on the ship dock at rubiah island in sabang city, indonesia

aceh bag barricade barrier beach blue breakwater coastal coastline construction dam danger defense disaster emergency environment erosion extreme weather flood flowing landscape nature ocean pile protection sabang island safety sandbag sandy sea seascape security shore shoreline stacked stone storm structure sumatera summer temporary travel vacation wall water waterside wave weatherproof stack sandbags ship dock rubiah city indonesia boat indostack indonesia