Parenting, with all its unpredictability, has two universal truths: Kids need space to romp freely, and parents need enough energy to keep up. Why are those little ones bestowed with so much energy? Stay up to date on the best things to do, see and eat in L.A.It’s also a place when parents need a jolt of liquid energy — a life-sustaining cup of coffee. For those moments, here is a list of go-to park playgrounds with coffee shops within walking distance, so you can take your little ones before play or at the end of a tantrum. Each swig of coffee promises to calm frayed nerves and bring you back to yourself.