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See the city's real 19th-century underground tunnels at the Zanjón de Granados alongside San Telmo and La Boca.
A private half-day tour taking in San Telmo, Evita's balcony, and La Boca, plus a visit to the Zanjón de Granados — the oldest tunnels in the city, built along a buried colonial-era stream.
This tour's real differentiator is the Zanjón de Granados, a genuine network of 19th-century tunnels and cisterns built over Buenos Aires' original colonial-era stream, tucked beneath San Telmo. An optional lunch can be added for an additional cost.
A popular starting point — every Voyzo itinerary is fully customizable, so we'll shape the order and stops around your group.
Round-trip pickup and drop-off at your hotel or apartment in Buenos Aires.
Descend into the city's oldest tunnels, dating to the colonial period.
Walk the historic neighborhood built above these same tunnels.
See the colorful Caminito street and immigrant history of this dockside barrio.
Back to your hotel, home, or the airport — whenever your day wraps up.
A private half-day tour taking in San Telmo, Evita's balcony, and La Boca, plus a visit to the Zanjón de Granados — the oldest tunnels in the city, built along a buried colonial-era stream. This tour's real differentiator is the Zanjón de Granados, a genuine network of 19th-century tunnels and cisterns built over Buenos Aires' original colonial-era stream, tucked beneath San Telmo. An optional lunch can be added for an additional cost.
The tunnels at El Zanjón de Granados trace back further than almost anything else standing in Buenos Aires. A 1580 map of the area shows a dwelling built by Juan González at the point where two streams met — one of them called El Zanjón de Granados — on the same spot where the historic house above the tunnels stands today, making this one of the earliest documented building sites in the city.
What you actually walk through is a network of tunnels, sewers and cisterns built from 1730 onward, encasing that original stream bed in vaulted brick as the city grew up and needed somewhere for its water, and later its sewage, to go. By the late 19th century the tunnels had been built over and largely forgotten, buried beneath the neighborhood that grew on top of them.
They stayed buried until 1985, when Jorge Eckstein, an Argentine chemical engineer and amateur historian, began excavating the site — a project that ended up taking 17 years. Workers hauled out more than 130 truckloads of debris, and in the process turned up French tiles, English china, and other household objects left behind by generations of residents, now part of what's on display at the site today.
The neighborhood above these tunnels, San Telmo, has its own layered history worth knowing before you walk it — the cast-iron Mercado de San Telmo that still anchors the area opened in February 1897, designed by architect Juan Antonio Buschiazzo using an iron frame imported from Britain and engineering borrowed from European train stations. It was declared a national historic monument in 2000, and its original beams, arches and glass roof are still intact.
Every Voyzo tour is a starting point — tell us what you have in mind and we'll build it.
