A curated guide to the most spectacular caves, grottos and subterranean formations across the Iberian Peninsula
Discover CavesSpain is home to some of Europe's most remarkable underground landscapes. With over 10,000 catalogued caves spanning from the Cantabrian coast to the Balearic Islands, the country offers an extraordinary diversity of geological formations, prehistoric art, and subterranean ecosystems.
Whether you are drawn to the awe-inspiring stalactite chambers of Mallorca, the Paleolithic masterpieces hidden in Cantabria, or the vast cathedral-like halls of Andalusia, Spain's caves provide experiences that range from easy family walks to advanced speleological expeditions.
This guide brings together practical visitor information, historical context, and expert tips to help you plan unforgettable underground adventures across the country.
In-depth profiles of Spain's most visited and scientifically significant cave systems
Stretching nearly five kilometres beneath the hills of Malaga province, the Caves of Nerja house the world's largest known stalagmite column and Paleolithic paintings estimated at 25,000 years old. A must-visit destination combining natural grandeur with deep prehistory.
Home to one of the world's largest underground lakes, Lake Martel, these caves on Mallorca's east coast pair breathtaking geology with live classical concerts performed on illuminated boats.
Discovered in 1868, Altamira's polychrome bison paintings are among the finest examples of Paleolithic art anywhere on Earth. Today, visitors experience this UNESCO World Heritage Site through a meticulously crafted replica.
Most Spanish caves maintain a constant temperature between 14-18 degrees Celsius year-round. Bring a light jacket or sweater even during summer months. Comfortable closed-toe shoes with good grip are essential for navigating damp, uneven surfaces inside the caves.
Popular caves like Nerja and Drach receive hundreds of thousands of visitors annually. During peak season (June through September), advance booking is strongly recommended. Many caves now offer online ticketing, which often comes with a small discount compared to on-site purchases.
Photography policies vary between caves. Flash photography is universally prohibited as it can damage cave formations and disturb local ecosystems. Some caves, like Altamira's original chamber, do not permit any photography at all. Always check the specific rules before your visit.
Accessibility varies greatly between sites. Cuevas del Drach has well-maintained walkways suitable for most visitors, while some wild caves require scrambling and are only recommended for experienced cavers. Check each cave's website for specific accessibility information before planning your trip.
Browse our detailed guides covering visitor information, history, geological highlights, and practical tips for each cave system. Every article is independently researched and regularly updated with the latest visitor information.
