It was a scramble to the cavern. We had been told of the pitfalls and given good instructions as to the position and size of the entrance. I had grazed my hand and the stinging continued as I neared the cave mouth. As I walked within, the blackness consumed me. There was uneven rock and gravel underfoot. I was amazed how clearly I could hear my laboured breathing and the rapid pulse of my heartbeat. The sound seemed amplified and the reverberation echoed around what could only be a vast chamber. I could smell the scent if wood smoke, slightly perfumed with pine resin. I reached out to touch the side walls. they were cold and smooth and hard, like frozen ice. I shivered in the chill air. As i took a few tentative steps forward, my eyes accustomed to the darkness. Within the cavern were extraordinary shapes, huge columns from floor to roof space - great mountains of rock with strange colours and hues.