Scuba diving is the only way left to find hidden treasure, befriend a nautical skeleton, or strap a huge tank to yourself. Explore the possibilities with today's Groupon: for $12, you get a Discover Scuba Diving class at A-1 Scuba & Travel Center in Englewood (a $25 value).

A-1 Scuba & Travel Center sports a full-service dive center that's outfitted with top-of-the-line scuba and snorkeling equipment to suit-up underwater explorers of varying abilities. The approximately one-hour Discover Scuba class wets the gills of those who dream of mastering aquatic depths, but who aren't quite ready for the commitment of a certification course. Each introductory class includes use of the facility's diving suits and apparatus and features a certified instructor-led diving session held in A-1's on-site pool, which is heated and contains far fewer krakens than the actual ocean. Classes run approximately one hour, and students need only bring a swimsuit, towel, and any personal-hygiene items.

Reviews

The Denver Post featured A-1 Scuba & Travel Center. More than 1,300 Facebookers are fans, and three Yelpers give it an average rating of 4.5 stars.

• The highly trained, professional, and friendly staff will tell you all you need to know about Scuba. – Scott Skinner, Facebook
• Everyone else who works there is super-friendly and incredibly knowledgeable, and can answer any and all questions you have. – Amanda G., Yelp