By age 8, John Stuart Mill had learned Latin and Greek, and written a political treatise barring those with no knowledge of Latin or Greek from his tree house. Give your child a head-start with today's Groupon to Bob's Gym. This Groupon is valid at either Bob's Gym North or Bob's Gym Newburgh. Choose between the following options:

• For $29, you get four weeks of group swim lessons (a $60 value).
• For $180, you get up to six weeks of Infant Swimming Resource classes (a $450 value).

Bob's Gym generates strong swimmers in two saline-based swimming pools. The buoyant instructors teach kids aquatic derring-do such as floating, treading water, and using starfish to navigate without a compass. The twice weekly, 30-minute group swim classes are capped at a maximum of five students to each instructor. Five course levels imbue greenhorn swimmers aged 3 and up with skills ranging from breath control to advanced stroke techniques.

Infant Swimming Resource (ISR) classes instill children aged 6 months and older with greater familiarity with water, giving them a drastic advantage in later water fights. Though some children complete the lessons in as quick as four weeks, up to six weeks of classes are included with the deal. Taught one-on-one by certified instructors, 10-minute ISR lessons meet Monday through Friday and are customized to your child's needs. Tots are taught water-safety techniques such as holding breath underwater and floating unassisted.