Hydrographic Surveys

Detailed measurements of water depths, bottom contours, and hazards; updates from agencies like NOAA help boaters navigate safely.

Boating rules set by the US Coast Guard or other federal entities (e.g., EPA for marine pollution...

The skill of interpreting nautical charts, including water depth (soundings), contours, and navig...

Hidden hazards like rocks, logs, or reefs that can damage a hull or prop; charts, depth sounders,...

Structures or markers (e.g., lighthouses, range lights) guiding boaters through safe channels or ...