Explore Fortress Furggels on a private full-day tour from Bad Ragaz: a rare, guided entry into one of Switzerland’s largest secret alpine fortresses, paired with village stops and panoramic mountain views.
More ways to explore the area's outdoor wonders
You step out of a Mercedes at a mountain roadhead, cold alpine air nudging the glass doors closed behind you. Villages like Appenzell flicker past with painted façades and church bells; ahead the Hoher Kasten cuts a pale silhouette and, higher still, an entrance yawns into the rock where the Fortress Furggels sits, half-hidden and built to last.
Difficulty
easy
Duration
8 hours
Fitness Level
Light activity level — must be able to stand and descend/ascend stairs for short periods
Wildlife
History
Fortress Furggels was constructed starting in 1939 and remained a secret Swiss Army installation until being decommissioned and made public in 2001, with Cold War-era upgrades including filtered air systems.
Conservation
The region balances tourism with pasture and alpine habitat protection; stick to marked roads and trails, avoid disturbing sheep and grazing areas, and limit single-use plastics when possible.
Reserve your spot on the Private Tour of a Secret Bunker and Fortress in the Alps today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Book a private vehicle
This tour includes private transportation—confirm pickup points and extra driving time between Appenzell, Hoher Kasten and Bad Ragaz to avoid delays.
Expect stairs and ramps
Although wheelchair access is listed, the bunker has slopes and narrow passages—arrange assistance if mobility is limited.
Layer for temperature changes
Mountain summits can be windy and the bunker stays cool year-round; pack a light insulating layer.
Ask about photography rules
Some historic military installations restrict flash or interior photos—check with your guide before taking pictures.
Sturdy walking shoes
Grippy, closed-toe shoes make moving on wet ramps and stone steps safer.
Light insulating layer
Keeps you comfortable from sunny mountain tops down to the cool underground chambers.
Reusable water bottle
Stay hydrated during drives and short hikes—bottled water is provided but a refillable bottle reduces waste.
summer
Small daypack
Carries layers, camera, snacks and any personal items for the full-day private tour.