Swimming, like aging gracefully or enjoying dried fruit, requires acceptance of pruney fingers. Outfit your little ones for aqua play with today’s Groupon: for $54, you get six parent and baby water-entry classes at Blue Dolphin Swim School (a $96 value). Classes will run from the first week of July through August 14. Choose from classes at Savage Elite Sportsplex in Thornton or at OceanFirst Divers in Boulder.

Blue Dolphin Swim School’s crew of swim-savvy instructors teaches novice aquanauts to navigate waters in a small-group setting. Unite with motivated moms and dads who take fresh-picked babies—ages six months to two-years young—for a dip in a six-week session of water-entry classes. Each 45-minute class lets guardians guide little ones through the water, gently splashing faces, singing songs, and teaching them to gurgle the name Jacques Cousteau in unison. Immersing babies in the aqueous warmth of 85-degree water evokes familiar memories of long, late nights in the womb, and learning breath-holding techniques makes it easier to frequent their favorite watering holes.

Following each session, blood flows freely to babies' vital organs while they nosh on a parent-issued snack, privately questioning if they lived a former life as a porpoise. Two reusable swim diapers are mandatory for all classes, and may be purchased on site for an additional fee at the Blue Dolphin Swim School.