Wonderful flyer pictures and descriptions which are overrated. Nice enough for those that like caves but very large groups are ushered through the cave system on hard on the feet paths. Very crowded and you are unable to walk at a leaisurely pace. hearded into an underground auditorium to hear a few musicians play on darkened boats, then hearded out again.
It felt like they just wanted to get you in and out again as fast as possible.
The Coves del Drach (Dragon's grottes) are beatifully presented for the tourist and they even hold music concerts in the lake. It is nice, but the atmosphere is mayte too touristy.