Flashing red light means stay well clear of the lock and do not enter. Allow plenty of room for boats to exit the lock. Flashing amber light means approach the lock at a safe speed and under full control.
What do the red and green markers indicate?
These markers may be passed on either side as long as other, safe navigation rules are followed. Red and Green buoys and lights indicate primary channels. If the green horizontal band is on top, the primary channel is the right (starboard). If the red band is on the top, the primary channel is to the left (port) side.
What does it mean no wake?
No wake zones are declared in lake and rivers or water bodies near the shore. Any vessel operating in a speed zone posted as "Idle Speed - No Wake" must operate at the minimum speed that allows you to maintain steering and make headway. (This means no wake whatsoever. Possibly 600-900 RPMs depending on your boat).