Breathing underwater, like eating fireworks, constructing a monument, and getting married, should only be attempted if you're confident you can do it. This Groupon gives you all the skills you need to mingle with the mermaids.

$15 for One Try Scuba Diving Lesson ($50 Value)

Beginning divers learn about tank functions during a one-hour scuba-technique lesson before plunging into the depths of an indoor pool for a practice dive, followed by a 30-minute Q&A session. Any students who wish to continue classes and earn their certification can sign up within 45 days to take advantage of a $50 discount toward tuition.

Calypso Scuba - The Dive Shop

Calypso Scuba - The Dive Shop provides certification-level scuba lessons, diving vacations, and rental gear to help students to gain their underwater legs. Originally founded in Memphis in 1961, Calypso Scuba - The Dive Shop has since expanded aquatic operations to four states in the South and Midwest and runs scuba programs at both the University of Mississippi and the University of Memphis. Instructional programs include everything from introductory swimming and snorkeling lessons to specialty courses in night diving, search-and-rescue diving, and diving while learning to play the guitar.