RealNZ · Doubtful Sound / Patea, Fiordland National Park
This is the other fiord: a coach to Manapouri, a boat across Lake Manapouri, a gravel road over Wilmot Pass and a 3-hour cruise on Doubtful Sound / Patea, in one 13-hour day. Pick it if you have done Milford, or would trade Milford's drama for space and quiet.
Doubtful Sound is not Milford under another name. It runs 40 km from its head to the Tasman Sea and is 421 m deep, the deepest of New Zealand's 14 fiords according to Fiordland's tourism board, where Milford runs about 15 km inland (Wikipedia). No road reaches it from the rest of the country. The one road at the far end, over Wilmot Pass, was built between 1963 and 1965 to haul equipment for the Manapouri power station, and it is still the only mainland road cut off from the national network (Wikipedia).
That is why the day is 13 hours. A coach takes you to Manapouri in about 2 h 20 min, a boat crosses Lake Manapouri to West Arm in about an hour, a coach climbs over the 671 m pass to Deep Cove in another hour, and the cruise lasts 3 hours. Then you do it all in reverse. It is rated 4.7 from 369 reviews, with 4.8 for the guides, 4.8 for transport and 4.5 for value; the listing's AI summary says some guests mention boarding and seating. Achiech was "wrecked by the end".
What you get for the travel is space and silence. Yi called it "better than Milford Sound if you prefer serenity over drama" and found theirs was the only cruise on the water for all 3 hours. Early Māori named the fiord Patea, the place of silence, and the skipper turns off the engines for a few minutes of quiet and birdsong (fiordland.org.nz). DOC lists it as home to one of the southernmost populations of bottlenose dolphins; Sarah saw them, and Yi reported plenty of seals at one end.
From 88 Beach Street through Southland to Pearl Harbour on Lake Manapouri.
A boat to West Arm, where the Manapouri power station sits underground.
A coach up the gravel road to the 671 m pass and down to the wharf at Deep Cove.
Out through the arms of the fiord, with an engines-off pause, and seals, dolphins and penguins possible.
Coach, boat and coach again to Queenstown, 13 hours after you left.
★★★★★Better than Milford Sound if you prefer serenity over drama. It is 10x as big, it is quiet and it is vast. [...] You are the only cruise there for the entire 3 hours. Lots of seal sighting at one end.
★★★★★I was expecting a long day but the time just flew by. [...] the boat ride across Manupouri alone is worth the journey.
★★★★★We saw dolphins, which was a really special part of the day.
★★★★★It's a big day Very well organised Spectacular scenery
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Different, not better. Doubtful is bigger, quieter and has far fewer boats; Milford has Mitre Peak, the road and a shorter day. Most first-timers should see Milford. Taseen, from Australia, put the case for doing both: "People normally only visit Milford Sound. But I'm glad that I also visited this one."
About 13 hours: a 2 h 20 min coach to Manapouri, 1 hour across the lake, 1 hour over Wilmot Pass and a 3-hour cruise, then the same in reverse.
No. Bring your own or buy food on board, where payment is by card only. See what to bring.
No public road reaches it. DOC says vehicles can be barged across Lake Manapouri and driven over Wilmot Pass with a permit, but for a day visit the tour is the practical way in. Staying nearer? Read Te Anau or Queenstown.
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A coach to Manapouri, a boat across Lake Manapouri, a road over Wilmot Pass and a 3-hour cruise on the quieter, bigger fiord, in one 13-hour day.
Milford Sound Coach & Cruise Day TripThe most booked Milford day: lunch included, pickup in central Queenstown or Te Anau, and three decks on the boat.★ 4.7 · 12 hours · from $151
Milford Sound Cruise & Coach Day TourChoose your cruise: 1 h 40 min with app commentary or 2 h with a live guide, from a fixed central meeting point.★ 4.7 · 12 hours · from $168
Milford Sound Premium Small-Group TourFifteen guests at most in a Mercedes van, flexible stops, a picnic lunch and the best guide rating of the road tours.★ 4.8 · Up to 13 hours · from $239