PSI Private Scuba Instruction is a premier scuba coaching service and is affiliated with Great American Divers in St. Charles, Mo. Founded with a passion for diving and a commitment to safety, we offer personalized scuba lessons tailored to individual needs. Our services include Discover Scuba Experiences and OPEN Water Certification. If you are already a certified diver and haven't been diving for awhile, we offer private Reactivate classes. ( Formerly called Scuba Review ) With experienced instructors and a focus on creating a fun and supportive learning environment, we ensure every student receives the attention and guidance necessary to become confident and capable divers. Whether you’re a beginner or looking to Reactivate your skills, PSI Private Scuba Instruction is dedicated to expanding knowledge and care for our underwater environment, ocean conservancy and  to helping you explore the underwater world with confidence.