DEWITTVILLE - One of the longest-established organized youth resident camps in the U.S., YMCA Camp Onyahsa will commence its 113th summer of youth, adult and family programs beginning on June 21. The accredited Chautauqua Lake resident camp will offer an open house from 11 a.m. to 3 p.m. on May 7. This event will showcase the year-round facility, summer programs, and tours will be led by Onyahsa staff members. The date will also offer the third annual "Take a Hike for Kids" sponsored walk through the woods, Dewittville Day displays by local vendors, and a yard sale. This event is open to all community members.