The Panama Canal, located in Central America and connecting the Pacific and Atlantic Oceans, has attracted much attention in recent years. In addition to U.S. President Trump's insistence on the "return of the Canal," abnormal weather and other factors have caused the water level of the Canal to drop, affecting logistics in Japan and other parts of the world. An examination of the problems posed by the Panama Canal suggests to us that it is important not only to stabilize the water level of the Canal, but also to establish safe navigation throughout the world.