You are motoring up this narrow channel. Which track should you keep to?
Seen from above: a narrow channel running up the picture, red can buoys down the left side, green cone buoys down the right, shallows beyond them. A yacht at the bottom with three tracks: A on the left, B in the middle, C on the right.
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C: the starboard side of the channel. In a narrow channel, keep as near to its starboard-side edge as is safe. Small boats should also stay out of the way of ships that can only use the deep water.