The big one
Boating While Intoxicated (BWI)
Drinking and driving a boat is a crime, just like in a car. It's illegal to operate any watercraft - a motorboat, sailboat, jet ski, or canoe - while intoxicated.
The limit: The limit is a 0.08 blood alcohol level, or losing the normal use of your body or mind from alcohol or drugs.
Penalties: A first BWI is a Class B misdemeanor: up to $2,000 in fines and up to 180 days in jail (with a minimum jail term), and it can suspend your driver's license. Repeat offenses climb to bigger fines and felony charges.
Safety checks: Game wardens can stop and board any boat for a safety check without needing a reason. If they see signs of impairment, a BWI investigation can follow.
Implied consent: On a boat with a 50-horsepower-or-bigger motor, you've already agreed to alcohol/drug testing if you're arrested - refusing can suspend your driver's license.
One twist: the open-container law doesn't apply to boat passengers - but the operator still can't be intoxicated. (In a state park, alcohol is restricted - see the camping guide.)
BWI is a legal matter - for the specifics of your situation, talk to a lawyer.
Boating While Intoxicated (Penal Code 49.06) ->