Old San Juan is a historic gem in Puerto Rico. With Colonial architecture and historic structures, the entire sector is a designated UNESCO World Heritage Site. Self-guided walking tours are available online, but a guided tour provides local insight and context to your surroundings. Book a private food or cocktail tour and taste the flavors of San Juan, or opt for a historic tour. The Old San Juan Free Walking Tour is available with reservations through the Civitatis website. Learn about the history of Spanish rule, see spectacular views, and tour the ancient fortifications. Don't forget to tip your tour guide afterward.