BERMUDA ISLANDS AREA TO BE AVOIDED Mariners are warned to navigate with extreme care in the approaches to the Bermuda Islands due to the extensive and dangerous fringing reefs. In order to reduce the risk of stranding, an IMO-adopted Area To Be Avoided has been established covering the northern coasts of the islands and the offshore reefs. The only safe approach to the islands is from the south-east, preferably in daylight. The outer navigational aids may be unreliable. For further details, see larger scale products and Admiralty Sailing Directions.