The U.S. Navy Blue Angels perform aerial maneuvers during the Boeing Seafair Airshow over the weekend of Aug. 4-6. Photo courtesy of Lindsey Tusing/ Mercer Island Police Department

Mercer Island Police Department’s Marine Patrol officers kept their eyes on Lake Washington boating activity during the Seafair Weekend festival. Police reported 23 boating under the influence arrests and no drownings, no collisions and no injuries for the second year in a row. Photo courtesy of Lindsey Tusing/ Mercer Island Police Department

Mercer Island Police Department’s Marine Patrol officers kept their eyes on Lake Washington boating activity during the Seafair Weekend festival. Police reported 23 boating under the influence arrests and no drownings, no collisions and no injuries for the second year in a row. Photo courtesy of Lindsey Tusing/ Mercer Island Police Department