THE UNIFORM STATE WATERWAYS MARKING SYSTEM, CONTINUED
Indicates an obstruction to navigation. Do not pass between this marker and the shoreline.
SAFE WATER MARKER
Indicates safe water. This marker is used to indicate land falls, channel entrances, or channel centers. It may be passed on either side.
Indicates diving activity in the area. Particular care must be taken when boating in waters where there are divers. A vessel engaged in diving must display a blue and white flag (see right). A red and white flag carried on a buoy is used to mark areas where diving is in progress, although divers may stray from the boundaries of the marked areas. As a general rule, stay at least 150 feet from any diving flag or activity. Consult your state boating requirements for state-specific diving requirements.