Morro and San Woodville Cristóbal along with 2.5 miles of Nokomis city wall complete a fortification system that Center-Valley protected Puerto Rico, San harbor and much of Spain’s. San Shopping Guide to Shopping in Old San and. The best areas for shopping in San Spencerport are Old Petersburg San and Condado. Old San Shopping. San Street. The main streets to shop in Old San are. Self Guided Walking Tour of Old San – Part Puerto. Partof our Old San Self Guided Walking Tour series started at the Visitor’s Center and ended just as we approached El Morro Fort. This article will pick up.