Trümmelbach Falls is the largest underground waterfall in Europe and the world's only glacier-fed waterfall located inside a mountain. These falls carry meltwater from the glaciers of the Jungfrau region down into the valley below, with an incredible flow rate of up to 20,000 liters per second. Every year, the rushing water transports more than 20,000 tons of rocks and gravel, causing vibrations throughout the mountain and producing a thunderous roar. The power and uniqueness of this natural wonder make it well worth a visit.
Trummelbach Falls
2 photos
Leaflet © OpenStreetMap
200m
Waterfall height
Plan your visit to Trummelbach Falls
Please verify on the official website before you go
Why is Trummelbach Falls famous?
Trümmelbach Falls is the only glacier waterfall series in Europe accessible inside a mountain, draining meltwater from the Eiger, Mönch, and Jungfrau glaciers. The ten dramatic waterfalls carry up to 20,000 liters of water per second, eroding 20,000 tons of boulder scree annually, and are illuminated inside accessible tunnels — a unique spectacle that earned UNESCO World Heritage recognition as part of the Jungfrau-Aletsch region.
Can you swim at Trummelbach Falls?
No — the falls are inside a mountain and accessed via walkways and tunnels; no swimming areas. Please verify on the official website before you go.
Are dogs allowed at Trummelbach Falls?
Dogs are not allowed inside the Trümmelbach Falls. Please verify on the official website before you go.
Is Trummelbach Falls free? Do you need a permit?
Entry fee required — approximately CHF 12–14 for adults (prices may vary by season); not free. Please verify on the official website before you go.
Is there parking at Trummelbach Falls?
There is a paid parking area at the Trümmelbach Falls site; the walk from parking to the entrance building is very short (under 100 meters). Please verify on the official website before you go.
How long is the hike to Trummelbach Falls?
No hike required — parking is directly at the attraction entrance; inside, a tunnel-lift takes you up through the mountain to the viewing galleries. Please verify on the official website before you go.
Trummelbach Falls hike difficulty
Roadside (no hike) — though inside you walk through tunnels and climb stairs between viewing platforms; approximately 200 steps total inside the mountain. Please verify on the official website before you go.
When is the best time to visit Trummelbach Falls?
Late spring to early autumn (May–September) when the falls are open to visitors and snowmelt from Eiger, Mönch, and Jungfrau glaciers creates maximum flow. Please verify on the official website before you go.
Route and trail notes for Trummelbach Falls
From the parking area, walk to the entrance building where you purchase tickets. A tunnel-lift (funicular) carries you up inside the mountain. You then descend through a series of illuminated tunnels, walkways, and staircases that provide viewing platforms at different levels of the ten glacier waterfalls. The route is one-way downward through the mountain, exiting back near the entrance.
Trummelbach Falls official website
Attractions near Trummelbach Falls
- •Staubbach Falls — 297m tall waterfall visible from Lauterbrunnen village, one of Europe's highest
- •Lauterbrunnen village — charming Alpine village known as the Valley of 72 Waterfalls
- •Jungfraujoch — Top of Europe railway station and viewpoint at 3,454m elevation
- •Mürren — car-free mountain village accessible by cable car with Eiger views
- •Schilthorn — revolving Piz Gloria restaurant featured in James Bond film, cable car access
Safety information
Waterfalls can be unforgiving. Read these before you go — and please, use your judgement on the day.
Full safety guide →Questions & answers
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