Highland Park PADI center with information on classes, trip opportunities, along with contact and location details.

Spring fed quarry dive site. Rentals, maps, photos, water temperature and visibility, news, message board, and contact information. Located in Kankakee.

State-wide coalition of skin and scuba diving clubs and individuals. Meeting minutes and schedule, clean-up dives, photos, newsletter, and contact information.

Full service dive shop. Class schedule, travel information, specials, photos, location, and contact information. Located in Glen Ellyn, a western suburb of Chicago.

Full service dive shop serving Northern Illinois and Southern Wisconsin. Services, sales, classes, trips, location, and contact information.

An 8.5 acre spring fed stone quarry devoted to diving and dive training, located in Southern Illinois and featuring 120 foot depth and a sunken Boeing 727. News, events, prices, rentals, directions, accommodations, photos, and contact information.

A 5-Star PADI facility providing training, sales, travel and service of Dacor and Sherwood regulators and BCDs for SCUBA diving. Located in Normal.

Full service dive shop. Training schedules, SCUBA equipment sales and service, rentals, trips, and contact information. Located in Champaign, in East-Central Illinois.

Charter diving service offering shipwreck diving trips on Lake Michigan and Lake Superior. Dates, locations, photo album, contacts, and information request form.

Full service dive shop. Training, equipment, newsletter, events, photos, and contact information. Located near the Brickyard Quarry dive area near St. Elmo in South-Central Illinois.