Arcos del Sitio

The Jesuits of Tepotzotlan began the Xalpa aqueduct in the eighteenth century to water their haciendas, and its canyon crossing - finished long after their expulsion, in 1854 - became the tallest aqueduct arcade in the Americas: four superimposed tiers of stone arches stepping down the gorge of the Oro river, about 60 metres from streambed to channel at the highest point and more than 400 metres long. The engineering is Roman in spirit and rancho in setting: raw hills of oak and cactus, hawks riding the canyon wind, and the arches golden at late afternoon. The state park around it makes a family day of the monument - lookouts on both rims, a stair-path descending to the river between the tiers, picnic palapas, horses, and zip lines that send visitors flying past the stonework. Walkable channels along the top course reward the sure-footed with the aqueduct-keeper's view. It remains far less known than it deserves, even among capital weekenders.

What you actually see

• The four tiers - stacked arches filling the canyon end to end.
• The rim lookouts - full-height views of the 60-metre arcade.
• The river path - stairs to the streambed beneath the arches.
• The park life - palapas, horses and zip lines around the monument.

When to go

Dry-season afternoons color the stone best; weekends bring facilities to life, weekdays leave the canyon to the hawks.

Honest expectations

The descent and return climb are steep and sun-exposed - water and hats required. Services run weekends primarily; midweek can be near-deserted with limited food. The zip lines are cheerful, not extreme.

Nearby

Tepotzotlan's golden church and Viceroyalty museum pair naturally; Villa del Carbon's sheepskin-and-trout pueblo lies up the road.