The U.S. Army Corps of Engineers, Rock Island District, will offer three free Illinois Safe Boating classes this summer at the Illinois Waterway Visitor Center May 7, June 18 and August 20 from 9 a.m.-5 p.m. The classes are open to everyone age 11 and older. Students under age 16 should be accompanied by an adult and pre-registration is required. Upon successful completion of the class and exam, participants will receive an Illinois DNR Boat Safety Certification.