Hidden beneath the Carso Triestino lies Grotta Cinquantamila. Its entrance now sealed a testament to a forgotten past. Imagine 1959. Two speleologists seeking new caves uncovered this hidden gem near Padriciano. They persuaded the landowner Giuseppe Gregori to let them explore. A fierce snowstorm raged. Yet the determined explorers dug through nearly six cubic meters of earth. They revealed Grotta Cinquantamila’s entrance.
Grotta Cinquantamila is more than just a cave. It’s a time capsule. Its 300-meter network of tunnels and chambers holds secrets. Inside are traces of previous explorations. Artificial steps carved into the rock. A basin for collecting water. Wooden and metal remnants of ladders. Even mining tools hint at past attempts to access underground water supplies.
The inscription “E W 1866” etched near the main shaft is particularly intriguing. The “W” likely refers to engineer Wallon. He worked on the nearby Abisso dei Morti around that time. Grotta Cinquantamila was possibly investigated in the search for water sources for Trieste. Later during World War II partisans sought refuge in its depths.
Descend into Grotta Cinquantamila. A short low tunnel leads to a steep gallery. Its uneven floor is covered with debris and stalagmitic crusts. Artificial steps help you navigate the slope. The air is cool. The walls are adorned with beautiful formations. The ground is surprisingly sticky clay. A high narrow chimney lets in a cold draft.
The heart of Grotta Cinquantamila is a vast chamber. It’s twelve meters high. Three galleries branch out. The floor is clay. Small puddles of muddy water collect where water drips from the ceiling. This chamber once channeled subterranean water into the final cavern. Its path beyond is lost to time.
Grotta Cinquantamila’s deepest point is 73 meters below the surface. A 29-meter shaft reveals a remarkable gorge. It shows how water eroded the shaft’s walls. Decaying remnants of ladders are scattered among the clay and debris. A smaller 5.6-meter shaft leads even further down. There you can still see the fissure that water researchers explored. They hoped to find deeper water sources but abandoned their efforts for reasons we don’t know.
The sand in a corner of the final cavern is unusual. It holds pisolites some as large as 20 centimeters. A final gallery extends for 15 meters. It’s decorated with stunning stalactites. An artificial basin collects water. It’s made of wooden planks.
Grotta Cinquantamila. A forgotten treasure. A testament to human curiosity and nature’s enduring artistry. Its mystery endures. Its secrets remain partially unveiled. Its hidden stories beckon further exploration.