Guided Speleology in the Lecherines System, Jaca

Context Speleology in the Lecherines System takes place in the Macizo del Aspe, a region of the Aragonese Pyrenees featuring limestone formations that rise to 2,645 meters. This cave network extends for several kilometers across fields of limestone rock, creating a unique geological environment where internal temperatures remain cool, between 8 and 12°C. The wind carries the scent of damp earth and ancient stone.

The Experience Guided by local experts, you’ll traverse winding underground passages lined with delicate stalactites and stalagmites, descending and climbing through tight, enclosed spaces. You’ll feel the moisture on rough rock walls and hear the constant echo of dripping water. The activity blends mountain hiking with cave exploration, revealing natural geological details with every step.

For Whom This activity suits people with good mobility and moderate physical endurance, including families with children aged 8 and older who enjoy adventure and nature. Not recommended for those with claustrophobia, limited mobility, or severe respiratory conditions.

Local Context The Macizo del Aspe is a region with a strong mountain and speleological tradition. The guides, knowledgeable in local geology and history, emphasize the importance of preserving these formations and the surrounding natural environment, which is part of the cultural and natural heritage of the Aragonese Pyrenees.