The U.S. Army Corps of Engineers, Rock Island District, is offering free boating safety education classes at the Illinois Waterway Visitor Center located at 950 N. 27th Rd. in Ottawa, Illinois, April 20, May 18, June 15, July 20, and August 17. Each class runs from 9 a.m. to 5 p.m. and is open to anyone 11 years of age or older. Completion of only one course is necessary for certification.