Matt Slezak, a motorboat instructor, guides Morgan Silvis, a park ranger from Tionesta Lake, through an obstacle course on the water during the Motorboat Operator Training Course hosted by the U.S. Army Corps of Engineers Pittsburgh District at Crooked Creek Lake in Ford City, Pennsylvania, Aug. 4, 2021. The 24-hour course included training on watercraft safety, a swim test, inflatable life jacket certification, boat launching, obstacle courses and a written exam. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)