From TPWD:
10. May I have an open container on a boat?
Open containers are legal, but operators of boats are subject to boating while intoxicated laws, similar to driving a vehicle. Operators or passengers may also be subject to public intoxication laws. Drinking and boating is DANGEROUS and the cause of most boating fatalities.
Can the driver be drinking and driving or just the passangers can have an open container?
10. May I have an open container on a boat?
Open containers are legal, but operators of boats are subject to boating while intoxicated laws, similar to driving a vehicle. Operators or passengers may also be subject to public intoxication laws. Drinking and boating is DANGEROUS and the cause of most boating fatalities.
Can the driver be drinking and driving or just the passangers can have an open container?