Charts are maps of the seabed, showing the depth of water, the location of rocks and shoals, and the positions of navigation aids such as buoys and lighthouses. They also show the coastline, including the location of ports and harbors, and the routes of shipping lanes.
Publications provide additional information about the charts, including details on tides, currents, and other hazards that may not be shown on the chart. They also provide information on regulations and procedures for navigating in different areas.
Together, charts and publications provide the information you need to make informed decisions about your navigation and to stay safe on the water. Here are some specific reasons why they are necessary:
* To avoid hazards. Charts and publications can help you avoid hazards such as rocks, shoals, and other obstacles that could damage your boat or cause injury to your passengers.
* To find your way. Charts and publications can help you find your way to your destination and to avoid getting lost.
* To comply with regulations. Charts and publications can help you comply with regulations and procedures for navigating in different areas.
* To stay safe. Charts and publications can help you stay safe on the water by providing you with information about tides, currents, and other hazards that could affect your navigation.
If you are planning to go boating or any other activity on the water, it is important to have the latest charts and publications for the area you will be navigating. You should also be familiar with the information contained in these documents and how to use them properly.