The island of Mallorca has numerous caves and several show caves. The most famous show cave is the Cuevas del Drach, which means a lot of visitors! But the other caves are not so crowded and well worth a visit,
The first scientific cave explorations on Mallorca were done in 1896 by E. A. Martel, the famous French caving pioneer. Archduke Ludwig Salvator - a cousin of the Austrian Emperor Franz Joseph - lived in Miramar on Mallorca. He noticed the limestone and invited Martel to explore several unknown caves. Martel discovered parts of the Cuevas del Drac by boat.
Martel describes his discoveries in the Annales du CAF.
Because of the southern location of Mallorca, the temperature of the caves lies between 16 and 20°C. So it may be a good idea, to visit a cave if the weather is too bad to bath!