The first part will take you from near the cruise ship piers at the La Casita (Tourist Information Center) along the Paseo La Princesa, through the San Juan gate and then on to El Morro. This self-guided walking tour of Old San Juan will be split into two parts.
You can easily spend a full day exploring the walled city of San Juan, but if you only have a few hours to spare, you can still get a feel for the place.
Old San Juan, Puerto Rico may be small (around 7 square blocks), but there are still lots of attractions to see.