e sure to arrive early if you want a seat at Park Lock’s busy weekend Dim Sum service. From 8am to 3pm daily, waitresses wheel little carts filled with the brunch favorites like hargow (shrimp dumplings) and shumai (steamed shrimp, beef or pork dumplings)—dim sum staples. Park Lock is located in the heart of Chinatown and has been kicking around for over 20 years.