Fodor's Expert Review Piers Park
South Boston
City Park
Free
Sandwiched between Marginal Street and Boston Harbor, the gorgeous, landscaped, waterfront Piers Park features a grassy, green retreat from urban life and sweeping views of downtown Boston to the southwest. It is so named because of its many long piers that jut into the inner harbor. For a bit of historical knowledge: it's also in close proximity to the facility site where naval architect Donald McKay built his reputedly fast clipper ships. Take a stroll down the promenade and let the kiddos enjoy the large playground.