Curious about technical (tec) diving, but not sure about jumping into a course? Discover Tec is a short confined water experience that allows you to give technical diving a try. You get to wear all the extra tec diving gear and take it for a test dive. Your Rec2Tec Diving Tec Instructor may introduce a few basic skills, such as primary to secondary regulator switch and gas shutdown procedures. If you are interested in tec diving and are a PADI Open Water Diver, at least 18 years old, and have a minimum of 10 logged dives, you qualify for Discover Tec.