Venturing into more advanced underwater environments often means longer dive times and greater depths. To be able to safely extend both, divers need to increase their available breathing gas volume, add equipment redundancy and wear appropriate exposure protection. The GUE Doubles and Drysuit Primers are both non-certification courses designed to teach divers how to safely and comfortably dive a double tank configuration and drysuit using proper equipment and techniques.

Course outcomes include, but are not limited to: basic principles of DPV diving, dive planning, teamwork while using a DPV, environmental and conservation awareness, stress management, navigation, standard and emergency procedures, DPV maintenance and troubleshooting, and the potential hazards of diving with a DPV.