KHQ.COM - With warmer weather on the horizon, soon thousands of people will flood local rivers and lakes in the next few months. KHQ Local News previously reported on Bonner County Marine Deputies preparing for the upcoming summer boating season. On Thursday, KHQ Local News Reporter Cristy Aranguiz spent the day with Kootenai County Marine Deputies as they too prepare. KCSO's Marine Deputies spent the past four weeks in the North Idaho Marine Academy before practicing what they learned in the classroom on the water. One of the scenarios they practiced included making an arrest, but their responsibilities go much further than that. Before deputies go out on the water for Memorial Day weekend, they will have to pass a written examination. Kootenai County Sheriff's Office Lt. Stu Miller says water temperature is one of the most important things to be aware of this summer, especially in the next few weeks. Just because the sun is out doesn't mean you're safe from frigid temperatures, he told KHQ Local News. He also mentioned that Kootenai County issues the most citations each summer for marine violations out of all the counties in the entire state of Idaho. Whereas a few counties only issue one or two citations, Kootenai County has issues hundreds in the past in a single summer.