Cartagena City Tour: San Felipe Fortress, Walled City, Getsemaní & La Popa

Cartagena

The city is dense with history, but most tours move too fast through it, treating San Felipe as a photo stop and the Walled City as a backdrop. This private tour is built differently: smaller, slower, and guided by someone who knows the difference between the story visitors expect and the one that actually happened.

Cartagena was founded in 1533 by Pedro de Heredia on the site of a Calamari indigenous settlement. Within decades it became the most important port in the Spanish empire’s Caribbean network — the gateway through which gold and silver looted from the interior of South America passed on its way to Spain. That wealth made it a permanent target. Francis Drake sacked it in 1586. Blas de Lezo repelled a massive British assault in 1741. Pirates, privateers, and rival empires circled it for two centuries. The result was one of the most heavily fortified cities in the Western Hemisphere — and those fortifications are still standing.

San Felipe Fortress

Castillo San Felipe de Barajas took over a century to reach its final form. Construction began in 1536 on the hill of San Lázaro — chosen because it overlooked the most vulnerable approach to the city — and the fortress was expanded repeatedly through the 17th and 18th centuries as military technology evolved. By the time the Spanish finished, it was the largest and most sophisticated fortification they had ever built in the Americas.

The tunnel system inside the hill is one of the engineering feats that visitors remember most. A persistent myth holds that the tunnels connected the fort to the Walled City for emergency evacuation. The reality is more interesting: the tunnels were designed as acoustic chambers — soldiers listening at tunnel ends could hear footsteps on the ground above — and as explosive charges, packed with gunpowder to detonate under advancing infantry and collapse the ground beneath them. Your guide walks you through both the myth and the engineering.

The Walled City

The walls that ring Cartagena’s historic center were built over 208 years, finally completed in 1796. They stretch eleven kilometers, reach up to twelve meters in height, and include a system of bastions, half-moons, and artillery positions that made direct assault effectively impossible. The UNESCO World Heritage designation, awarded in 1984, recognized both the military architecture and the colonial urban fabric inside.

Walking the Walled City’s interior reveals what that fabric looks like at street level: narrow lanes that funnel ocean breezes between tall buildings, interior garden patios behind heavy wooden doors, colonial churches whose construction began before the United States existed, and plazas where the city’s political life has played out for four centuries. Santo Domingo Square — with Botero’s reclining nude, the oldest church in Cartagena, and the best people-watching in the city — is a concentrated version of everything the Walled City does well.

Getsemaní

The story most guides skip — or tell too quickly — is Getsemaní’s role in Colombian independence. On November 10, 1811, it was not the wealthy criollos inside the Walled City who forced the break from Spain. It was the working-class residents of Getsemaní, outside the walls, who gathered in the streets that night and pressured the governing council to sign the declaration. The date is still celebrated as Cartagena’s independence day, and Getsemaní still identifies itself as the neighborhood that did it first.

Today the neighborhood’s walls carry that history in paint. The murals here are among the most politically engaged street art in Colombia — direct, detailed, and often showing the tension between the community’s past and its present reality, as rising property values driven by tourism push out the residents whose families have been here for generations. Your guide reads those murals with you.

La Popa

The Convent of Nuestra Señora de la Candelaria was founded in 1607 by Augustinian friars on the city’s highest hill, 150 meters above sea level. Spanish sailors navigating into Cartagena Bay used it as a landmark — the convent’s silhouette against the sky told them exactly where the entrance to the harbor lay. From the hilltop today, the geography of the city becomes legible in a way it isn’t from street level: the Walled City as an island of stone, Bocagrande’s modern towers on the peninsula to the south, the bay opening to the Caribbean, and the green shapes of the Rosario Islands on the horizon.

It’s the right place to end a day in Cartagena. Everything you’ve walked through makes more sense when you can see it from above.