Precision Diving represents the efforts of Duane Johnson to promote excellence in scuba dive training in the Chicago and Great Lakes area. For individuals seeking high quality scuba classes, I provide a very comprehensive and rigorous curriculum. I believe that only such a program will ensure divers have the ability and knowledge to increase their diving capacity. I've built my training programs based on my own personal experience in Nitrox, Trimix, tech, wreck, cave diving and DIR training.

But most of all, I have fun!!!

- Member area is now on-line. Use the Member Login link to create your account. Registration is free. Members get access to diving articles, videos, and worksheets. Members can also register for classes on-line.

- Two openings remaining for the May 23 & 24 Intro to Tech course.

- DIR / GUE / Halcyon Dive Day @ Haigh Quarry

- Follow me on Twitter