Boats normally pass on the port (left) side. The other boater may use a signal horn.
To signal that you wish to pass another boat on your starboard side, you should sound one short blast of your horn. Conversely, if you intend to pass on your port side, you should sound two short blasts. These sound signals help communicate your intentions clearly to other boaters and ensure safe navigation.
To signal another boat that you wish to pass on their port (left) side, you should sound one short blast on your horn. This indicates your intention to pass on the other vessel's left side. It's important to ensure that the other boat acknowledges your signal before proceeding. Always maintain a safe distance and be vigilant for any changes in their course.
it tells you the boat is approaching you head on
The danger signal
Slow to minimum speed
Slow to a minimum speed
Slow to a minimum speed
Slow to a minimum speed
Reduce speed to bare steerageway.
Slow to a minimum speed
Slow to a minimum speed
Slow to a minimum speed