Doubtful Sound, where the captain cuts the engines

Everyone goes to Milford Sound. Almost nobody goes to its bigger, wilder neighbour. Doubtful Sound is around three times longer and ten times larger than Milford, and it receives a tiny fraction of the visitors, because you cannot drive there at all.

Getting in is half the experience. You cross Lake Manapouri by boat, climb into a bus and grind over the Wilmot Pass through dripping rainforest, and only then board the boat that takes you onto the fiord itself. Ferry, bus, ferry. By the time the sound opens up in front of you, you have earned it.

And it is vast. Where Milford is a single dramatic corridor, Doubtful sprawls into arms and islands, with cliffs and waterfalls in every direction and almost no other boats. We saw seals near the mouth where it meets the open sea, and just kept drifting deeper, the scenery refusing to run out.

Then, in one of the inner arms, the captain cut the engines. The Maori name for the place is Patea, the place of silence, and now I understand why. No motor, no chatter, nothing. Just water, rock, the occasional bird and the sound of your own breathing. We stood on the deck and let it land. It went straight into the bucket-list books.

If you only have one day in Fiordland, do Milford. It is easier and it delivers. But if you can spare the extra effort, Doubtful is the one that stays with you. Go for the scale. Stay for the silence.