Breathing underwater, like lifting weights or launching a piano into orbit, is difficult to accomplish without the proper equipment. Gear up for assisted aquatic adventures with today's Groupon: for $35, you get a three-hour introductory indoor scuba-diving class ($99 value) at Benthic Scuba Center.

Benthic Scuba Center, a PADI Five-Star Instructor Development Center, grants students a taste of underwater breathing and basic scuba technique in an introductory scuba class. Certified instructors educate students on technical basics, safety, and how to effectively stare down a giant clam with 90 minutes of classroom learning and instructional videos. Following the land-based lecture, students enter the water for an hour and a half in the indoor pool facility. Coaches supervise groups as they practice swimming in full gear and float through beginner dive skill exercises. The Center equips its students with all necessary gear including tanks and airfills, mask, booties, fins, weight belt, and repellant for shark-finned swimmers.

Armed with extensive product and hydrophilic fashion knowledge, staff members at the Center shop aid participants in selecting high-quality diving gear and rentals, and Groupon customers receive a 10% discount on the day of redemption. This course earns pupils practical scuba knowledge that may be applied toward a PADI scuba certification on the Divemaster, Assistant Instructor track. Students must then complete an additional two courses and instructor examination to officially greet salty depths as a PADI Open Water Scuba Instructor.