Breathing underwater, like eating fireworks, constructing a monument, and getting married, should only be attempted if you're confident you can do it. Today's Groupon to Peachtree Dive Center in Fayetteville gives you all the skills you need to mingle with the mermaids. Choose from the following options:

• For $30, you get a two- to three-hour snorkeling class (a $65 value).
• For $55, you get a two-hour traditional pool party (a $120 value).
• For $245, you get a two-person phase one open-water scuba-certification course (a $490 value).

The passionate and PADI-certified professional staff at Peachtree Dive Center has risen to such high levels of aquatic expertise that most of them eschew equipment altogether, favoring the gills bestowed upon them by friendly merpeople. During in-depth adult snorkeling classes, instructors school students on how to find appropriate skin diving sites, spot common hazards, and identify aquatic plants and wildlife. After discussing proper equipment care and maintenance, be-finned snorkelers plunge into Peachtree's indoor pool for a practical lesson. The kids’ class, in addition to a kid-friendly classroom and pool session, includes an interactive, informative coloring book. Host a Peachtree pool party and invite up to 20 swimmers to splash around in Peachtree’s 90-degree indoor pool under the watchful supervision of a lifeguard. Peachtree Dive Center does not provide refreshments, but encourages party hosts to bring their own snacks to fuel birthday parties, stockholder meetings, and manatee play dates.

For the open-water certification option, two people get to complete the first half of open water training, known as phase one, learning via classroom instruction and fins-on pool sessions taught by astute instructors. All scuba equipment (regulator, tanks, etc.) is included in today's deal, but students must provide their own snorkel, mask, and fins. And while you won't be certified to dive just from one class, you will be certified to sit in puddles with scuba gear on, and move on to the next step in the certification process. Classes meet frequently throughout the year; check the full open-water schedule for more information.