The U.S. Coast Guard in Hawaii plans to increase its patrols off Waikiki during the upcoming weekend for spring break.
The agency said in a statement Thursday an influx of college students and tourists generates numerous water safety concerns each year.
It says in previous years, people were drinking alcohol on large flotillas on the water and posing a danger to public safety.
The Coast Guard says Hawaii state law prohibits anyone from operating a vessel while under the influence of alcohol or drugs.
Through the patrols, the agency says it wants to prevent the need for searches and rescues. The Coast Guard also aims to deter illegal activities.