Eisriesenwelt Ice Caves | Salzburg

The Eisriesenwelt is the world’s largest ice cave system, located in Werfen, approximately 40 km south of Salzburg. It extends over 42 km through the Tennengebirge massif, though only the first kilometer is accessible to the public due to the presence of monumental ice formations.

Visual Characteristics

The cave features massive, natural ice sculptures, frozen waterfalls, and "ice organs." It is a "dynamic" cave, meaning a chimney effect draws in cold air during winter, which freezes spring meltwater. Visitors navigate the interior using handheld magnesium lamps, as there is no fixed electric lighting.

Location & Access Logistics

Transit: Direct trains from Salzburg Hauptbahnhof to Werfen (approx. 45 mins). A shuttle bus connects the station to the visitor center.

The Ascent: Reaching the entrance requires a 20-minute walk, a ride on the steepest cable car in Austria, and a final 20-minute uphill hike to 1,641 meters.

Coordinates: 47.503° N, 13.190° E.

Technical & Geological Data

The cave was formed in the Late Tertiary period (approx. 50–100 million years ago) through the erosion of limestone. The ice itself is significantly younger, with some layers dating back approximately 1,000 years.

Internal Temperature: Remains at roughly 0°C year-round.

Total Ascent: The tour involves climbing 1,400 wooden steps (700 up, 700 down).

Historical Origin

While known to local hunters for centuries as the "Entrance to Hell," the cave was first officially explored in 1879 by Anton Posselt. It was further developed in the 1920s with the construction of the first shelters and paths to facilitate scientific research and tourism.

Infrastructure & Amenities

Accessibility: Not barrier-free. The physical exertion and step count make it unsuitable for those with mobility issues or severe respiratory/heart conditions.

Equipment: Sturdy footwear and warm winter clothing are required, regardless of external summer temperatures.

Facilities: The Dr. Friedrich-Oedl-Haus provides dining near the cable car station.

Best Time to Visit

Seasonal Opening: Late April/early May to late October. The cave is inaccessible in winter due to avalanche risk.

Peak Avoidance: Arrive before 09:00 to avoid the mid-day arrival of tour buses from Salzburg.

Landmarks within the Cave

Posselt Tower: A massive stalagmite named after the first explorer.

Hymir Hall: A cavernous space featuring the "Ice Organ" formations.

Alexander von Mörk Dome: One of the largest chambers, containing the urn of explorer Alexander von Mörk.

Nearby Landmarks

Hohenwerfen Fortress – 5 km North

Golling Waterfall – 15 km North

Lammerklamm Gorge – 20 km East

The "Sound of Music" Trail – Located in the village of Werfen