The explored cave network extends for over 14 kilometers, though public access is limited to the first kilometer.
The temperature inside the cave remains a constant 8–10 degrees Celsius throughout the year regardless of external weather.
The caves are part of the Beatushöhle-Schrattenfluh system, which is one of the most extensive karst systems in Switzerland.
Archeological evidence suggests the caves were inhabited or used by humans as early as the Neolithic period.
The water exiting the cave mouth is the primary outflow of the large interior drainage basin of the Sigriswiler Rothorn.
St. Beatus-Höhlen is a significant cave system located on the northern shore of Lake Thun, featuring approximately 1,000 meters of explored paths accessible to visitors. The interior showcases diverse geological formations including stalactites, stalagmites, and subterranean waterfalls. A dedicated museum on-site provides historical and scientific context regarding the cave's exploration and regional geology. The site is named after Saint Beatus, a legendary monk said to have driven a dragon from the caves in the 6th century. The entrance area features a waterfall cascading directly from the cave mouth, fed by the cave's internal stream system. The path through the caves is electrically lit and includes informative signage. The site is situated within a karst landscape formed by the erosion of limestone by water over millions of years.
The dramatic waterfall flowing out of the cave entrance near the main complex bridge.
Wear a warm jacket even in summer, as the internal cave temperature is consistently cold.
Choose sturdy, non-slip footwear as the cave paths can be damp and occasionally slick.
Combine your cave visit with the short hike to the museum to fully understand the local geology.
Attempting to enter restricted or unlit sections of the cave system which are reserved for expert speleologists.
Closed annually during the winter season; typically reopens in late spring.
Maintain silence to respect the environment and refrain from touching the delicate limestone formations.
