Lake Te Anau
The South Island's largest lake, with three fiord arms reaching into Fiordland and a glowworm cave on the far shore.
Updated 27 August 2026
Te Anau covers about 344 square kilometres, the largest lake in the South Island and second in the country only to Taupo, and its shape is the point: three long arms - North, Middle and South Fiord - reach west into the mountains, drowned glacial valleys that give the lake a fiord character on a freshwater body. The eastern side is farmland and the township; the western side is Fiordland National Park with no road access at all. The best-known trip is to the Te Ana-au glowworm caves on the western shore, reached by boat and then walked and punted through a limestone system that is geologically young and still being cut by the stream running through it. The town is the base for the Milford Road, the Kepler and Milford tracks and the Fiordland flights, so it functions as a staging post. The Te Anau Bird Sanctuary on the lakefront holds takahe.
Highlights
- The three fiord arms - drowned valleys reaching into the mountains.
- Te Ana-au caves - glowworms, reached by boat and punt.
- The roadless western shore - Fiordland National Park across the water.
- The bird sanctuary - takahe on the lakefront in town.
When to go
October to April. Cave trips run year round and need booking. Still mornings for reflections; the lake gets rough in wind.
What to expect
Cave tours are ticketed and involve a boat, a walk and a punt in the dark - not suitable for anyone very claustrophobic. Sandflies at the shore. The western side is inaccessible except by boat or air.
Nearby
Manapouri is south; the Milford Road and the Kepler Track start here.
Key facts
Source: Wikidata, item Q1140471, read on 18 October 2026.
What to pack for Lake Te Anau
Chosen from what this place is for. Tap a kit for the full checklist.
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Head torch + spare batteries - Hands-free light is essential; caves are truly dark. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
- Grippy closed shoes - Cave floors are wet, muddy and slick with formations. Find on Amazon
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All packing kitsPlan your trip
Where to start if Lake Te Anau is going on the list.
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


