Nature · All year round
The most beautiful caves in Spain
Underground lakes crossed by boat, formations that seem to defy gravity, rivers beneath the mountains and prehistoric paintings: Spain's most beautiful caves can be visited in any weather, and inside the temperature barely changes all year.
Updated 20 October 2026 · How we make our guides
Stalactites and underground lakes
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SpainCaves of Drach
By the sea in Mallorca, with Lake Martel, one of the largest underground lakes in Europe, crossed by boat.
What to see in Caves of Drach -
SpainEl Soplao
Famous for its eccentrics, formations that grow in every direction, in an old mine in Cantabria.
What to see in El Soplao -
SpainValporquero caves
Great halls hollowed out by an underground river in the mountains of León.
What to see in Valporquero caves -
SpainNerja
The Nerja cave, with huge halls and one of the largest stalactite columns in the world, near the coast of Málaga.
What to see in Nerja -
SpainAracena
The Gruta de las Maravillas, beneath the town's castle, with lakes and colourful formations.
What to see in Aracena
Volcanoes and prehistoric art
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SpainJameos del Agua
A lava tube in Lanzarote turned by César Manrique into a space with an underground lake.
What to see in Jameos del Agua -
SpainSantillana del Mar
The replica of the Altamira cave and its museum, with the most famous bison paintings in prehistory.
What to see in Santillana del Mar -
SpainZuheros
The Cueva de los Murciélagos, with prehistoric paintings, high in the Subbética hills of Córdoba.
What to see in Zuheros
Frequently asked questions
Which is the most beautiful cave in Spain?
It depends on what you are looking for: the Caves of Drach for their underground lake, El Soplao for its eccentrics, the Nerja cave for the size of its halls or Altamira for its art.
Can you visit the original Altamira cave?
The original is closed to protect it, apart from very limited visits; what you visit is the museum's replica, next to Santillana del Mar.
Do you need to book?
For the most popular ones it is best to book, especially in summer and on long weekends, because visits are guided and group sizes are limited.
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Reviewed 20 October 2026. Dates and seasonal warnings: the same data the Bagintravel app uses. Sources and method.
Cover photo: Javier Pérez Montes (CC BY-SA 4.0), Wikimedia Commons.