ends. Travelling from a large body of water to a smaller
one is considered returning from seaward.
SAFE WATER MARKERS
Safe water markers have vertical red and white stripes and
mark the center of navigable channels and fairways. Safe
water markers include both lighted and unlighted buoys
and daymarks. If a marker is lighted, the light will be white,
and will flash the letter “A” in Morse code.
Preferred Channel markers have horizontal red and green
bands. If lighted, the color of the light is the same as the
top of the band. They show the preferred channel for you
to use at a junction point. Be sure to notice the color of the
top band, and treat it as any other marker you would of
that color. If the band is red and you are returning from
seaward, keep the marker to your right. Most lights on
markers flash on and off. Others such as lights on aids with
no lateral significance are fixed. They stay on all night.
ATON lights flash in regular patterns. For example, they
may flash every three seconds, or in groups such as two
flashes and a pause. There are a number of flashing
patterns, which help you identify the light at night. To
identify a light, note its color and pattern or timing of
flashes, and compare it to your chart to find its location.
The Uniform State Waterway Marking System
This section discusses three kinds of markers in this
system: Regulatory, Informational and Lateral.
Regulatory markers in this system are either signs or
buoys. Signs are square with orange borders. Regulatory
buoys are white and shaped like cylinders. They have
horizontal orange bands near their tops and just above the
water’s surface. An orange circle on a marker means a
controlled area. A message such as “No Wake, Idle
Speed, No Skiing, or 5 MPH” may appear on the marker.
An orange diamond means danger. If the diamond has an
orange cross inside it, don’t enter the area. The reason
https://www.boat-manuals.com/lund/