Why did Captain Cook name Doubtful Sound?

He doubted he could sail out again

Fiords have a layer of what floating on salty seawater?

Fresh rainwater stained by tannins

New Zealand Fiords Trivia: 10 Questions With Answers

This New Zealand fiords trivia explores Milford Sound, Doubtful Sound, Dusky Sound and Fiordland National Park. Ten questions with answers on the glacier-carved inlets of New Zealand's wild southwest.

Start New Zealand Fiords Trivia

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Words
Why are New Zealand's fiords called sounds?
Spelling
How does New Zealand officially spell fjord?
Milford
Which writer called Milford Sound the eighth wonder of the world?
Doubtful
Why did Captain Cook name Doubtful Sound?
Rain
Milford Sound receives about how much rain a year?
Wildlife
Which penguin breeds in Fiordland?
Fiordland
Fiordland National Park is part of which UNESCO site?
Water
Fiords have a layer of what floating on salty seawater?
Hiking
Which hike is called the finest walk in the world?
Depth
Which is New Zealand's deepest fiord?

Explanations: answer key for all 10 questions

Q1: Why are New Zealand's fiords called sounds?
Answer: Early sailors misnamed them
A sound is a river-carved valley, but these were carved by glaciers, so they are really fiords.
Q2: How does New Zealand officially spell fjord?
Answer: Fiord
New Zealand uses fiord, as in Fiordland.
Q3: Which writer called Milford Sound the eighth wonder of the world?
Answer: Rudyard Kipling
Kipling's praise is often quoted by tour operators.
Q4: Why did Captain Cook name Doubtful Sound?
Answer: He doubted he could sail out again
Cook did not enter in 1770, fearing he could not leave against the wind.
Q5: Milford Sound receives about how much rain a year?
Answer: About 6,700 millimeters
Rain creates hundreds of temporary waterfalls.
Q6: Which penguin breeds in Fiordland?
Answer: Fiordland crested penguin
It is one of the rarest penguins.
Q7: Fiordland National Park is part of which UNESCO site?
Answer: Te Wāhipounamu
Te Wāhipounamu covers southwest New Zealand.
Q8: Fiords have a layer of what floating on salty seawater?
Answer: Fresh rainwater stained by tannins
The dark fresh layer lets deep-water corals grow close to the surface.
Q9: Which hike is called the finest walk in the world?
Answer: Milford Track
The track is about 53 kilometers and takes four days.
Q10: Which is New Zealand's deepest fiord?
Answer: Doubtful Sound
Doubtful Sound reaches about 421 meters deep and is roughly three times longer than Milford Sound.

New Zealand Fiords Trivia – Carved by Ice

Fiordland in southwest New Zealand has 14 fiords carved by glaciers during ice ages. Steep cliffs rise from deep water, and waterfalls tumble from hanging valleys.

The region is among the wettest in the world, which feeds lush rainforest and creates a fresh, dark surface layer on the fiords. This lets black coral grow unusually shallow.

Fiordland is remote, with only one road to Milford Sound. Boat cruises, kayaking and hiking tracks let visitors explore, while conservationists protect rare birds such as takahē and kākāpō.

What This Quiz Teaches

This quiz is for travelers and hikers exploring New Zealand's fiords.

Why fiords are called sounds
Why Cook named Doubtful Sound
How much rain falls
What the Milford Track is
Why black coral grows shallow

Did You Know?

The Homer Tunnel leads to Milford Sound.
Mitre Peak rises from Milford Sound.
Stirling Falls drops into Milford Sound.
Takahē were rediscovered in Fiordland in 1948.
Dusky Sound was visited by Cook in 1773.