Boats puttered by slowly in a Lake Minnetonka channel Saturday as Deputy Shawn Eberle flipped on blue and red emergency lights.
"Do you know why I stopped you?" he asked the driver of a yacht.
He pointed to buoys marking where boats are required to go 5 miles an hour between channels, telling the driver he didn't slow down soon enough.
"Be safe," he said, giving the driver a warning.
Eberle is one of eight deputies and 22 special deputies in the Hennepin County Sheriff's Office's water patrol unit, overseeing boating enforcement, education and emergencies on Minnesota's most popular lake. In its six decades, the unit has grown to one of the biggest and busiest water patrols in Minnesota, overseeing waterways from massive Minnetonka to the Mississippi River.
This weekend, deputies and law enforcement across the state were out in full force for the final big boating weekend of 2016. This season was the deadliest in recent years on Minnetonka, the Twin Cities' largest lake, with three people killed while boating.
That coincides with a rise in deaths statewide, with 14 people killed in boating incidents — on pace to reach an 11-year high, the Department of Natural Resources said.
On Lake Minnetonka, there's no clear reason for the rise in deaths, but deputies said boating inexperience and alcohol are factors.