Glow Worm Caves
In the Fiordland Region
Send this page to a friend Print this page Notify me when this page is updated

Fiordland Home


Coach and Bus Tours
Cruise Doubtful Sound
Cruise Milford Sound
Fishing in Fiordland
Four Wheel Driving
Glow Worm Caves
Guided Hunting
Jet Boating in Fiordland
Kayaking and Canoeing
Mountain Biking
Scenic Flights
Underwater Observatory

Doubtful Sound

Milford Sound

Te Anau

Visitor Guide

Walking Tracks

Site Map

Post Cards

Support and Help

New Zealand Information
New Zealand Information
Home : Activities : Glow Worm Caves

Spacer Adventure Underground
Following a scenic cruise across Lake Te Anau, view informative interpretation displays at Cavern House before your guides take you on an exploration of the Caves by path and small punt.
Observe how the rushing water sculpts the rock formations, before gliding through silent darkness to the glowworm grotto. The delicate incandescence of thousands of tiny glowworms is a magical sight.

The Te Anau Caves are relatively young in geological terms, around 12000 years old, and are still being formed by water action. The fractured limestone rock is being steadily eroded and at times the Tunnel Burn flows through with spectacular force.

It is a mysterious underground world of rock formations and fossils, of waterfalls, whirlpools, and a ’cathedral’ with walls towering above.

The excursion is a great way to spend an evening after a day exploring either Milford or Doubtful Sounds.

Light Hunters
New Zealand glow worms are actually the larvae of small flies called fungi gnats that go through a four part life cycle: egg, larvae, pupae and adult fly.

Only the larvae can feed and to assist hunting its prey, produces a brilliant internal glow through oxidation of the chemical luciferen in its digestive system. The light can be turned on and off at will when disturbed by unusual noises, light, humidity and temperature. It also varies intensity depending on the desire for food.

Flying insects are attracted to the collective display of lights in the dark cave that mimic the night sky and are caught up in the sticky silk threads that hang from the glow worm nests. The ’fishing lines’ are hauled in and the captured insects devoured.

Reviews and Comments
If you have been to this place or done this activity why not post some comments to make this page more useful? Otherwise, read some of the comments that have already been posted.

Post comments Read Comments

Web Design Copyright © 2009 New Zealand on the Web Limited
All Rights Reserved
Glow Worm
Glow Worm