Waitomo Glowworm Caves, Waitomo, North Island, New Zealand

The third and final level goes down into the Cathedral, demonstration platform, and the jetty. The Cathedral is an enclosed area with rough surfaces, now paved, and is about 18 m high, giving it good acoustics. A number of famous singers and choirs have performed there including Dame Kiri Te Kanawa.
The tour concludes with a boat ride through the Glowworm Grotto. The boat takes the visitor onto the underground Waitomo River where the only light comes from the tiny glowworms creating a sky of living lights.