The waterfall Rome built, in 271 BC

The Cascata delle Marmore falls 165¹ meters over three drops and it is not a natural waterfall: Rome cut the Curiano channel in 271¹ BC to send the Velino over the edge into the Nera.

Built in 271 BC, for drainage

The falls exist because Roman engineers dug the Curiano channel in 271¹ BC to drain the stagnant waters of the Velino out of the Rieti plain and into the river Nera. The 165¹ meter drop in 3 stages is the side effect of a public works project.

That reverses the usual order of things. The landscape here is the outcome of the engineering, not the setting for it, and every subsequent century has adjusted the same system rather than admired it untouched.

The consequence is visible on the ground: sluice gates sit at the top of the drop, and they decide what the falls look like at any given hour.

The water runs on a timetable

Outside the scheduled release hours the water goes to a hydroelectric plant and the 165¹ meter drop falls to a minimum flow. Turn up at the wrong hour and you will see a wet cliff.

The release times change month by month and differ between weekdays and Sundays and holidays. The park publishes them as a seasonal calendar, which has to be reread before each visit rather than memorized once.

We are not printing a timetable here for the same reason. Any release schedule copied into a travel page has a shelf life of weeks, and this is the single detail that determines whether your trip was worth making.

€12, and the €6 winter ticket that tells you something

The full ticket is €12 from age 10, with €10 reduced for ages 5 to 9 and for over 70s, free under 5, and €6 on winter days with no water release (2026). Prices on this page are in euros.

That €6 rate is the most informative number on the price list. It exists because the park knows that on many winter days there is no release, often with the flow limited to weekends, and it prices the visit accordingly.

Groups of 15 or more pay €10, the Umbria Green Card rate is €8, the internal shuttle costs €4, and 24 hours of camper parking costs €20. Residents of the comune of Terni, people with a serious disability and licensed tour guides enter free.

How to plan a visit that works

Check the release calendar first, then buy the ticket, in that order, because a €12 ticket on a no-release day buys a view of rock. That sequence is the whole practical content of this page.

If your dates are fixed and they fall in winter, look for the weekend, when releases are more likely, and take the €6 rate as the honest signal of what a no-release day is worth.

The shuttle at €4 matters if you plan to see both the upper and lower belvederes in one visit, since the two are connected by a climb rather than a stroll.

Terni is the nearest city and the comune whose residents enter free, which tells you how the park is treated locally: as municipal infrastructure with a gate, rather than as a monument.

What the sources do and do not say

The 271¹ BC origin comes from the park operator's own material, and we did not find a second institutional source open to confirm it, so it is carried here at medium confidence rather than as settled fact.

Nothing on this page is derived from the many articles that call the Marmore falls natural. They are wrong in a way that matters, because the release schedule only makes sense once you know a Roman channel and a power station are upstream.

For the region, see Umbria and the Cascata delle Marmore page for the practical detail.

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