A deputy from the Kootenai County Sheriff's office performs field sobriety tests on a boater suspected of boating under the influence on Lake Coeur d'Alene in Idaho on June 30, 2018. The Coast Guard worked closely with the deputies throughout the 4th of July holiday week to collaboratively patrol waterways and promote boating safety. (U.S. Coast Guard photo by Petty Officer 2nd Class Ali Flockerzi.)