Monterey 180 FS Owner's Manual page 70

Meeting Head-On
Neither boat has the right-of-way in this situation. Both boats should
decrease speed, should turn to the right, and pass port-to-port. However, if
both boats are on the left side of a channel, each vessel should sound two
short horn blasts and pass starboard to starboard.
PASSING
PORT TO
PORT
Basic Rules of the Road
MEETING
HEAD TO
HEAD
HONK
HONK
HONK
HONK
PASSING
STARBOARD TO
STARBOARD
KC-0581
2-5