Old San Juan

Even if you don't plan on buying anything, walking the blue cobblestone streets to enjoy the colonial architecture is well worth your time. Calle de la Fortaleza may be the best.

Yes! Puerto Rico is generally safe for tourists, especially in major tourist areas like Old San Juan, Condado, Ocean Park, and popular beach towns. As with anywhere, avoid poorly lit areas at night, don't flash valuables, and stay out of known high-risk neighborhoods like La Perla after dark.