Top 10 Caves around Borgo Valsugana

The region offers a diverse range of underground experiences, from natural karstic formations like sinkholes and chasms to historical World War I sites. You can find caves with impressive stalactites and stalagmites, as well as those that served as military emplacements or logistics bases.

Yes, the Caves of Castello Tesino are equipped for guided tours and are more accessible to the general public. They are suitable for children at least 110 cm tall, offering a chance to see fabulous stalactites and stalagmites, and even evidence of prehistoric cave bears.

You can explore several historical caves. The Quota 2093 / Biancardi Gallery WW1 was an Austro-Hungarian machine gun emplacement that later became an Italian command headquarters. The Cima Caldiera Logistics Base Caves (World War I) served as storage for supplies during the Battle of Ortigara. The Caves of Castello Tesino also preserve fossils of the prehistoric cave bear, Ursus Speleus Ros.

The Siesòn Cave (or Sciasòn Chasm) is an impressive karst sinkhole, descending 46 meters as a well. The Buso dei Quaranta is another spectacular collapse sinkhole. The Grotta di Costalta is one of Trentino's largest caves, featuring formations shaped by ancient glaciers. The Grotta del Calgeron is known for its unique cylindrical holes formed by swirling stones.

Many guided cave tours, such as those for the Grotta di Costalta and the Caves of Castello Tesino, are typically available during the summer months. For the Grotta del Calgeron, the inner sections are best accessed during dry periods, usually in winter. Be aware that the Siesòn Cave can have ice year-round, requiring caution in colder months.

Yes, several caves are reserved for skilled or expert visitors. The Grotta di Costalta requires a specialized guide and prior booking. The Cave of Bigonda, renowned as the widest cave in Trentino, is exclusively for expert explorers due to its challenging nature and susceptibility to sudden flooding, requiring guidance from the Gruppo Grotte Selva. The inner sections of Grotta del Calgeron also require expertise and specific conditions.

Accessibility varies greatly. Some caves like the Caves of Castello Tesino are equipped for guided tours and are more accessible. Others, such as the Grotta di Costalta, Cave of Bigonda, and the inner parts of Grotta del Calgeron, are for skilled or expert visitors only and often require specialized guides and equipment. Always check specific requirements and safety precautions for each cave, especially regarding ice or potential flooding.

Yes, the Grotta di Costalta has yielded remains of ibex bones, a species long extinct in the Trentino mountains. The Caves of Castello Tesino are significant for preserving evidence of the prehistoric cave bear, Ursus Speleus Ros, through fossils and fragments found within.

The Borgo Valsugana area offers various outdoor activities. You can find numerous routes for running, gravel biking, and road cycling. Many of these routes allow you to explore the natural beauty of the Valsugana region, including views of Lake Caldonazzo and Lake Levico.

Visitors appreciate the impressive and spectacular nature of the karst formations, such as the deep chasms and sinkholes. The historical significance of the World War I tunnels and logistics bases also draws interest. Many find the experience of exploring these underground environments fascinating, especially the unique geological features and the sense of discovery.

Absolutely. The Grotta del Calgeron is notable for its unique cylindrical holes, which were formed by swirling stones that carved out the rock over time. These stones are still visible within the holes they created. The Grotta di Costalta also showcases formations shaped by the continuous flow of crystal-clear water from melting ancient glaciers.