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.


 
