CAUTION
Mariners are advised to exercise caution when navigating outside the surveyed channel.  This area has not been surveyed to modern standards.  
Owing to changing conditions, the aids to navigation may be moved to mark the best channel. Mariners should not attempt to enter without local knowledge. For subsequent changes of aids to navigation, the " Notices to Mariner" and the "List of Lights, Buoys and Fog Signals" must be consulted.
