Reaction time . Alcohol slows reaction time. It is difficult to process the sights and sounds around you in time to react after you've been drinking. Alcohol can keep a person from making sound decisions. A boater who has been drinking may take risks he or she normally would not.
Alcohol causes tunnel vision and makes it harder to focus.
It can also impair depth perception, night vision, and peripheral vision, making it harder to judge speed, distance, and follow moving objects. If you refuse to take a breath, blood, or urine test, the Boating Commission will suspend your boating privileges for one year. Whether you're operating a sailboat, a motorboat, or a Jet Ski, safe boating requires a clear head, steady hand, and observant eye. A boater who has been drinking cannot function as sharply as one who has not. If you drink before or while operating a boat, you risk your own life, as well as the lives of your passengers, crew, and others on the water.