Canadian Hydrographic Service Central and Arctic Region CA373311 - GIANTS TOMB ISLAND TO FRANKLIN ISLAND CABLES The symbols for submarine and overhead cables do not differentiate between cables conducting electric power, often at high voltages, and other types of utility cables. Mariners are advised to exercise caution when passing under all overhead cables and to avoid anchoring or conducting seabed operations in the vicinity of submarine cables. The clearance of an overhead cable may differ from its charted value due to changes in atmospheric conditions, water levels and other factors. For additional information, consult Notice No.16 in the Notices to Mariners, Annual Edition and the appropriate volume of CHS Sailing Directions. CAUTION This chart was designed for offshore navigation. For complete details of aids to navigation, larger-scale charts and the List of Lights, Buoys and Fog Signals must be consulted. CAUTION The Georgian Bay small-craft charts must be used in order to navigate the Small-craft Route and adjacent waters. These provide the details of Aids to Navigation marking the route and other important information. © Fisheries and Oceans Canada 2014. Published by the Canadian Hydrographic Service. A licence is required from the Canadian Hydrographic Service (www.charts.gc.ca) to reproduce or distribute this work.