Looking at a cruise departing San Juan. We will only be in San Juan either: 1. Arrive late Fri night, depart early Sun evening or 2. Arrive Sat afternoon (2PM) and depart Sun early eve. I know this isn't much time and will only give us a taste of PR, but from a hotel stand point, what area do we want to be in for walking tour type sightseeing? We would like to get a feel for the city, love architecture, street shopping, etc. We are going to get tons of beach time on the cruise and are not "nightlife" type people (read 50 somethings ). Any suggestions? Thanks