Into Gollum's Cave...

At Waitomo we take the Glowworm cave tour which starts in a limestone cavern full of stalactites and stalagmites. Glow worms gang from the ceiling and illuminated like small led lights, nearer the underground stream they become plentiful. Then we board a boat in complete darkness and are pulled through the water cave by ropes as we admire the diaspora of Glowworm colonies eventually to emerge in daylight. Reminds me of taking a boat ride in the Hades underworld with Orpheus!