At the best adults-only all-inclusive Caribbean resorts, every day feels like a daydream. Imagine lying on a perfect white-sand beach with an ice-cold frozen drink in your hand, your partner cozied up ...

But I’m at Camp Social — a luxury, all-women adult sleepaway camp in the Poconos — where the tagline is “99% arrive solo, 100% leave as friends.” And in the spirit of field reporting, I’ve promised ...