The biggest crystals weigh 55 tons and are measuring up to 36 feet long. Imagine what an incredible experience it would be to stand in the cave and experience the beauty of the crystals. One other attraction in Mexico is the Island of the Dolls, a rather dark and scary attraction.
They are blade-sharp and dangerous but awesome to look at. From the pictures you would suppose that it is icing cold in the cave, but to be honest it is about 112F, and the cavers need to bring cooled air in backpacks and be protected by special suits for the conditions.