If you're visiting Old San Juan, get ready to drink. As an Airbnb resident of America's Most Beautiful City, I stumbled upon a few places worthy of your time and others that certainly are not.
Perhaps you have a great bottle of wine you were supposed to bring home for a special occasion. Perhaps you have the thirsties and do not like to wait. Perhaps you are slightly hungry. If so, and it happens to be a Wednesday, go to Trattoria Emilia.