The SSI Recreational Sidemount diving course is a great introductory course in to learning more about extended range diving. Sidemount diving means that you will have two tanks on either side instead of having just one tank on your back. This technique comes from the technical cave and wreck diving world, but has been gaining popularity with recreational divers. In this course you will learn how to effortlessly find better balance with new gear, and why it makes sense to have redundancy with doubled air delivery systems. You must be 18 years old or older and possess a minimum certification of Open Water Diver with 24 logged dives. The recreational sidemount specialty requires one pool dive and three open water dives.