Rhine Falls

The water falls over a step of hard rock called limestone.

The rock in the middle is about 15,000 years old. Water rubs against it every day. Very, very slowly, the water wears it away.

The Rhine Falls drops over a step of limestone. The big rock in the middle of the falls formed about 15,000 years ago, SRF reports, and the river has been washing around it ever since.

The rushing water slowly wears the rock down, and weathering breaks it down too. The limestone also has cracks running through it. A geologist told SRF in 2024 that, thousands of years from now, the rock will one day collapse. An official from Schaffhausen added that there was no reason for safety worries at the time.

According to SRF, the rock in the falls formed about 15,000 years ago and has been washed by the river ever since. Slow erosion and weathering weaken the limestone, which is also cut by joints (natural cracks), "in slow motion". Geologist Sandro Truttmann, working for the two cantons, told SRF that in geological time the rock will collapse at some point, in thousands of years.

The cantons have monitored the rock since the early 1980s. In 2024 they began using vibrometry: a seismometer on the viewing platform records the background vibration the waterfall produces, which shows how stiff the rock is and so how stable. Cantonal project leader Jürg Sturzenegger told SRF in July 2024 that there was no reason for concern; the measurements are a precaution.

Two rocks stand in the falling water.

People ride a boat to the big rock. They climb up to a platform and feel the spray! The small rock is just for looking at.

Two rocks stick up out of the Rhine Falls. The big one has a viewing platform on top, and boats carry visitors to it so they can climb up into the middle of the roaring water. The smaller rock next to it is not open to visitors.

People have helped protect both rocks from the force of the water. Near the end of the 1800s, the small rock was given a protective wall. In the winter of 1984 to 1985, workers drained the area around the big rock and covered it with a coat of sprayed concrete.

SRF describes the large rock as reachable by boat and, with its viewing platform, a magnet for tourists; the small rock beside it is not accessible. Both have been reinforced. According to a 1985 report in the journal Wasser, Energie, Luft cited by SRF, the small rock received a protective facing wall at the end of the 19th century.

In 1979 there were fears that the large rock might vibrate at high flow, so it was studied in 1980 and 1981. In November 1983 the cantonal governments decided to coat it with sprayed concrete (shotcrete). The work itself was simple, but the rock had to be drained and a 130 m access walkway built; it was carried out in the winter of 1984/85.

The waterfall is not always the same.

In summer, lots of water thunders down. In late autumn there can be much less. Scientists measure the river all the time.

How much water goes over the falls changes through the year. In June, the month with the most water, the long-term average is about 560 cubic meters a second; in February it is about 255. Switzerland's Federal Office for the Environment measures the Rhine at Neuhausen all the time. On November 1, 2026, its gauge read about 123 cubic meters a second, less than half of the long-term November average of about 288.

The same office sets flood danger levels for the river. The highest level starts when more than 1,150 cubic meters of water flow past every second.

Flow varies strongly through the year. The Federal Office for the Environment (FOEN) gauge Rhein – Neuhausen, Flurlingerbrücke gives long-term monthly means (1959–2025) from about 255 m³/s in February to 559 m³/s in June, and 288 m³/s for November; it read 123 m³/s on November 1, 2026 (24-hour range 119–124 m³/s), and a notice since July 27, 2026 warned that its temperature readings were distorted by the low water level.

FOEN's flood scale for the station runs from level 1 (below 670 m³/s) to level 5 (above 1,150 m³/s). The official Rhine Falls website shows the gauge's live discharge and water temperature, so visitors can see how much water is going over the falls on the day they come.

You can visit the falls any day of the year.

Paths and platforms let you see the water up close. Stay behind the railings. Rocks near the water are wet and slippery.

The Rhine Falls is open around the clock, every day of the year. From Schloss Laufen a footpath leads past the thundering water to a viewing platform called Fischetz; entry on that side costs a small fee, while the Schlössli Wörth side on the Neuhausen bank is free. A short walk from the train station at Neuhausen Rheinfall brings you to the falls.

The water is fast and powerful, so stay on paths and platforms and behind the railings, and only go out to the big rock on the official boats.

Per the official site, the falls are freely accessible 24 hours a day, 365 days a year; on the Schloss Laufen side an entrance fee (CHF 5.00 per person) covers the Historama and viewing platforms, while access at Schlössli Wörth is free. Neuhausen Rheinfall station is about 8 minutes' walk away.

The cantons monitor the large rock so that tourists can walk on it safely. Visitors should keep to paths and platforms, stay behind railings near the fast, cold water, and reach the rock only by the boat services.