During the Vietnam War, when Canada had become a safe haven for those who refused to be drafted into the U.S. Army, Boblo Island became an efficient transit point for Americans who sought refuge from prosecution. Those seeking to pass into Canada would take the boat from Detroit to Boblo and, upon arrival, would trade their return tickets with persons who had arrived on the island from Amherstburg. Those who had come from Canada took the return trip to Detroit, and those who had come from Detroit took the return trip to Amherstburg, thus arriving in Canada without having to pass through customs at the border.