A major attraction along the east coast is the profusion of caves, a large number of which can be visited. Best known is probably the Cove del Drach (Dragon's Cave) next to Porto Colom, with its subterranean lake. Most caves are spectacular, with some intricate limestone formations and many other features slowly carved by nature from the sandstone. Sound and light shows to classical music are sometimes included, reportedly not to everyone’s taste. The Cuevas de Arta close to Capdepera also boasts enormous caverns and an underground lake. Cuevas del Hams, is also close to Porto Cristo.