Exploring the depths...
From the illuminated chambers of Mallorca's Dragon Caves to the ancient rock art of Altamira, Spain hides some of Europe's most remarkable underground treasures. Let us guide you through these geological masterpieces.
Spain boasts one of the richest collections of accessible caves in all of Europe. The country's diverse geology, spanning ancient limestone karst formations to volcanic lava tubes, has created an extraordinary underground landscape that tells the story of millions of years of natural history.
Whether you are drawn to the ethereal beauty of illuminated stalactites, the mystery of prehistoric cave paintings, or the thrill of navigating subterranean rivers, Spain's caves offer experiences that are both educational and awe-inspiring. Many of these sites are recognized by UNESCO for their cultural and natural significance.
Home to one of the largest underground lakes in the world, the Dragon Caves in Porto Cristo offer a mesmerizing journey through four interconnected chambers adorned with thousands of stalactites and stalagmites. Visitors can enjoy classical music concerts performed on the waters of Lake Martel.
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Stretching nearly 5 kilometers beneath the Andalusian coast, the Caves of Nerja house the world's largest known stalagmite and contain evidence of human habitation dating back 25,000 years.
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Often called the "Sistine Chapel of Prehistoric Art," Altamira features breathtaking polychrome paintings created over 14,000 years ago. A UNESCO World Heritage Site and one of humanity's greatest artistic treasures.
Read Full GuidePopular caves like Cuevas del Drach and Nerja can sell out during peak season (June-September). Reserve your tickets online at least a week ahead, especially for weekend visits.
Spanish caves maintain a constant temperature of 12-17 degrees Celsius year-round, regardless of outside weather. Bring a light jacket even during summer months.
Cave floors can be slippery and uneven. Wear sturdy, non-slip shoes with good grip. High heels and open-toed sandals are not recommended and may be prohibited.
Flash photography is typically prohibited inside caves to protect delicate formations and prehistoric art. Some caves allow non-flash photography, so check before your visit.
Browse our detailed cave guides, visitor tips, and travel information to plan your next subterranean adventure in Spain.
About Our GuidesLast updated: February 2025
