Our launch will take you across the lake to Cavern House set amongst native rainforest. Here you will be given an informative commentary by our guides, before going on your underground adventure.

By path, follow alongside the Tunnel Burn passing the whirlpool and waterfalls and, by small boat, glide through the silent darkness of the enchanting glow worm grotto. There's time for complimentary tea or coffee, while viewing the displays at Cavern House and you may care to take a short nature walk through the rainforest.

Glow worms are found throughout the caves and are most spectacular in the darkness of the grotto at the end of the caves system. Glow worms are the larvae of small flies called fungus gnats. They live on insects which are attracted by their light and then captured on sticky threads they produce. The actual cause of the 'glow' is the oxidisation of a chemical called 'luciferin' present inside the glow worm. The glow worm light shines as a blue/green colour and the hungrier the glow worm, the more brightly it glows. The light of a glow worm can be switched on and off at will then disturbed by sound or light, humidity or temperature. This is the reason for the restrictions on the use of flashlights within the caves, and the necessity for silence in the glow worm grotto.

The Morning Caves (8.00am & 9.30am) departure is subject to;
Minimum of 20 paying passengers
A combination booking for both the Te Anau Caves and a Fiordland Travel Milford launch cruise, for the same group.