The other increasingly popular way to enjoy rock climbing in Illinois is with artificial structures called climbing walls. These walls vary in their complexity, design, and materials. Styles range from small wooden blocks affixed to gymnasium walls, to an elaborate system of interlocking textured panels designed to simulate the look and feel of natural rock. Examples of each can be found in various settings. Many health clubs, YMCAs, summer camp settings, and a few backyards have seen the value of adding climbing to their lists of recreational opportunities.
Most gyms offer memberships, single use, classes, and exclusive use for organized groups.
The Chicago area alone has over a dozen of these gyms. The Irons Oaks Adventure Center in Olympia Fields has a series of rock climbing offerings for youth and adults. Programs offered on the tower include recreational classes for teens and adults as well as open climbing each Wednesday evening in the summer. Open climbing is geared towards the experienced climber who wants to stay in shape in between climbing trips. The tower at Irons Oaks is also available for groups by appointment.