Stay Away From Divers
Divers must display a diver-down flag to warn other boaters. A diver should stay within 100 metres (328 feet) of the flag.
Boats not engaged in diving operations should stay at least 100 metres (328 feet) from a displayed diver-down flag. If the waterway is not large enough for you to stay 100 metres away, slow down and stay away from the diving boat and the area around it.