Royal Caribbean cruises that originate in San Juan will dock at the Pan American Pier, which is across the channel from the San Juan Cruise Port. It's adjacent to the Isla Grande Airport and is about a 5 minute taxi drive from Old San Juan. As you're driving in, you should be able to see the ship docked since there isn't much around there.
The San Juan Cruise Port is the largest and busiest cruise port in the Caribbean. There are 4 cruise ship piers and 2 modern terminals along the southern shores of historic Old San Juan with a total capacity to accommodate 7 ships at once.
Paseo Concepcion de Garcia Pier Muelle 4 Old San JuanPuerto Rico 2.
Admission to one fort gets you admission to the other fort for up to 7 days, so if you have time you can visit both. Luis Munoz Marin International Airport in San Juan is fully operational with scheduled domestic and international flights.
Where are your favorite places and things to do in Old San Juan? El Galapon has gorgeous masks.
The shops located in these streets can surely be of interest for San Juan visitors.