Exercise Wallaby - R&R Day Two Part II via @Dead_Cockroach
We were told how the cave was first discovered in 1882 by a Norwegian migrant called John Olsen. In order to let us experienced cave darkness, all the lights were turned off. It was so dark that we could not even see our fingers right in front of our eyes. This was exactly what John Olsen went through - as we were told. After exiting through the zigzag passage, we were led across the swinging bridge and ended up in their giftshop.