Lights and wrecks - Only the most important lights and wrecks are shown on this chart.
Boundaries - The International Boundaries shown on this chart are approximate only.
Submarine cables - Not all submarine cables are charted correctly. See larger scale charts.
Gas pipelines - For further details see larger scale charts.
Minimum information area - In the coastal area within the depth contour of 30m, nautical information is minimum and inadequate to safeguard navigation. See charts at larger scale.