The artificial harbors, or Mulberry Harbors, at Arromanches-les-Bains, were temporary, portable harbors built by the British to help offload supplies. The harbors were initially constructed in Britain and brought across the English Channel to both Arromanches-les-Bains and Saint-Laurent-sur-Mer. They were meant to be used for about three months, however, they were used for longer periods of time while the Allied Forces were able to secure other harbors in Belgium and France. The harbor in Arromanches-les-Bains moved large numbers of men, vehicles and cargo before it was decommissioned. Parts of the harbor can still be seen in there today and serve as a grim reminder of what the Allied forces serving in this area went through.