Try Scuba is an introductory mini course that allows you to find out what scuba diving is really like before you take the plunge into a full scuba certification course. Generally, the class lasts only a couple of hours, but the student is given an overview of scuba diving, introduced to the equipment and its functions and then suited up and put in a pool to experience the novelty of breathing underwater. This program is generally good for individuals who are not yet certain they will be comfortable swimming with the fishes.