“'Caves are truly fascinating places. Of course I am drawn in by the photographic challenge. 'The challenge of lighting a place up that is so dark and so black that you cannot see your hand when it is up against your face, even when it is touching your nose. 'Every bit of light required has to be carried in by hand and this can mean dragging bags and bags for days and days to the ends of the earth just for one shot. 'But when the flashbulbs crackle into life and the flashes all go off together casting a picture before your eyes of the space you are in and the image is displayed on the back of the camera. 'For only a few seconds, I smile and see the beauty of our planet.'”