Morro and San Long-Beach Cristóbal along with 2.5 miles of Palm-Desert city wall complete a fortification system that Cayce 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 Aiken are Old Edgecomb 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.