Exploring the depths...
From ancient Paleolithic masterpieces to crystalline underground lakes, Spain harbors some of Europe's most extraordinary cave systems. Our in-depth guides help you plan unforgettable subterranean adventures.
Explore CavesSpain is home to more than 10,000 documented caves, each telling a unique geological story that spans millions of years. The Iberian Peninsula's diverse landscape, from the limestone karst regions of Andalusia to the volcanic tubes of the Canary Islands, has created some of the most visually stunning and scientifically significant cave systems in the world.
Whether you are a seasoned spelunker or a curious traveler looking for something beyond the typical tourist trail, the caves of Spain offer experiences unlike anything else. Walk through chambers adorned with ancient cave paintings, gaze across underground lakes that seem to stretch into infinity, and marvel at stalactite formations that have been growing for thousands of years.
Home to one of the largest underground lakes in the world, Lake Martel, where classical music concerts are performed from boats floating across the illuminated waters. These four interconnected caves stretch over 2.4 kilometers beneath the eastern coast of Mallorca.
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Stretching nearly five kilometers beneath the hills of Andalusia, the Caves of Nerja contain the world's largest known stalagmite and feature Paleolithic paintings that may date back over 42,000 years.
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Often called the "Sistine Chapel of Paleolithic Art," this UNESCO World Heritage Site preserves some of the finest examples of prehistoric cave painting ever discovered, with polychrome bison dating back 36,000 years.
Read Full GuidePreparing properly for a cave visit ensures both safety and maximum enjoyment. Here are some essential tips gathered from experienced cavers and tour guides across Spain.
Most Spanish caves maintain a constant temperature year-round, typically between 15-20 degrees Celsius. However, visiting during shoulder seasons (April-May or September-October) helps you avoid the largest crowds while still enjoying pleasant weather for the journey to each cave entrance.
Sturdy, non-slip footwear is essential. Cave floors are often wet and uneven. Bring a light jacket or sweater even in summer, as cave temperatures can feel significantly cooler after being in the Spanish sun. Avoid wearing sandals or open-toed shoes.
Many popular caves limit daily visitors to protect the delicate formations. We strongly recommend purchasing tickets in advance, especially during peak tourist months (June through August). Some sites like Altamira have extremely limited access and require reservations weeks ahead.
Flash photography is strictly prohibited in most Spanish caves to protect both the rock formations and any prehistoric art. Many caves allow photography without flash, but always check at the entrance. Tripods may be restricted in busy areas to ensure smooth visitor flow.
Our guides are regularly updated with the latest visitor information, ticket prices, and travel tips. Explore our individual cave pages for detailed practical information and historical context.