Mike Folkerts and Dave Borg, boating safety experts at the Coast Guard 17th District prevention department, demonstrate safe personal watercraft operation at Auke Lake in Juneau, Alaska, June 15, 2013. The two men gave a classroom presentation as well as the practical demonstration for Juneau residents interested in teaching a class for other PWC users. (U.S. Coast Guard photo by Petty Officer 3rd Class Grant DeVuyst)