The Drach Caves are Mallorca's most famous, offering an unforgettable experience with their stunning display of light, color, dramatic stalactites, and underground lakes. 
Located in Porto Cristo, these four caves were formed between 5.3 to 11 million years ago. Their subterranean landscape, shaped by the filtration of rainwater through limestone rocks, looks like something out of a science fiction film.
First mentioned in the 14th century, the Drach Caves gained fame after an underground lake was discovered in the 19th century, now a setting for magical concerts since 1935.
The tour also includes a visit to the historic pearl factory, a pioneer in Europe, with a multimedia area, boutique, and lounge bar. 
Duration: 6 hours