A limestone cave location at the Upper Rock Nature Reserve, once believed to be the Gates of Hades, an entrance to the underworld. Although in a complete, natural state, this cave is beautifully lit, often used for performances. Earliest writings of this cave lead back to 45AD. Learn about the complex history of the cave and its various uses throughout the ages from ancient civilizations to modern day. Immerse yourself in the mystery and wonder that surrounds this cave through the tales and legends of the past. Don't miss out on the fallen stalagmite that became too heavy and fell thousands of years ago, which now reveals its magnificent interior structure in a most dramatic way.