Practicing dives in a local pool, like practicing pool in a local dive, requires steadfast concentration and a fair amount of tipping. Make a splash with today’s Groupon: for $189, you get a family membership to Ashbourne Swim Club in Elkins Park (a $400 value). The club stays open until September 5.

Fifty meters of aquamarine pasture await butterflies and backstrokes in Ashbourne Swim Club's Olympic-sized pool, where families of up to five can take unlimited advantage of swimming lessons and other summery activities. Lifeguards patrol the pool’s cement shores, keeping at least one lane dedicated to inflatable swan carpools. Separate diving and wading pools provide space in which to practice half-somersaults or doggy paddles during swimming lessons, while water aerobics and poolside yoga classes cultivate contoured templates for suntans. Not every family member will be forced to enjoy the swim club’s watery delights, as a nearby play area and sports courts offer all the dry entertainment of a British sitcom. Other club amenities include a cyber café with free WiFi, regular movie nights, and scheduled social events to honor the summer’s bountiful feast of sunshine.