11 tricky Sydney Harbour trivia questions and answers
If you’ve been to Sydney once or a hundred times, you’ve almost definitely spent time around Port Jackson — better known as Sydney Harbour. We work, play, commute, swim, celebrate, and generally orbit this beautiful waterway. But how much do you really know about it?
This multiple-choice trivia quiz dives into the things that live in, move across, or quietly shape the harbour every day.
Click Reveal answer to see how well your guesses hold up.
1. There are currently eight islands within Sydney Harbour. Which of these is NOT one of them?
Reveal answer
Glass Island
2. The 2.32-kilometres-long Sydney Harbour Tunnel allows commuters to drive under the harbour. What year was the tunnel opened?
Reveal answer
1992
3. Sydney is home to two main cruise ship terminals: Circular Quay and White Bay Cruise Terminal at White Bay. White Bay's evolution to a cruise terminal came with the closure of Darling Harbour terminal to make way for the Barangaroo development. What year was the Darling Harbour cruise terminal closed?
Reveal answer
2012
4. Speaking of cruises, NSW welcomed more than 1.2 million passengers and crew during the 2024-25 cruise season (ending in early 2025) How many times did a cruise ship visit a NSW port in this cruise season?
Reveal answer
312
5. What is a ‘Sydharb’ (or sydarb)?
Reveal answer
A unit of water measurement
6. The crown jewel of the harbour is the Sydney Opera House. A popular story about the Sydney Opera House is that Luciano Pavarotti refused to walk on the carpet of the northern foyer during a 1983 visit. He considered the color of the carpet to be the same as a coffin lining and was bad luck. What colour is the carpet in the Sydney Opera House forcourt?
Reveal answer
Purple
7. What is the name of the famous long-nosed fur seal that lounges on the Opera House steps?
Reveal answer
Benny
8. Sydney’s most expensive property sale in 2025 was a two-level penthouse at One Sydney Harbour, Barangaroo purchased by company director Yan Zhang in July 2025. Rounded to the closest million, what was the eye-watering final sale price of this property?
Reveal answer
$142 million
9. Bridge Climb is the company that guides over 160,00 customers to the top of the Sydney Harbour Bridge every year. Lloyd Poulton, 91, is one of Bridge Climb’s best customers. As of 2025, how many times has Poulton climbed the bridge?
Reveal answer
132
10. Accordning to Transport NSW, how many bicyclists cross the bridge each year?
Reveal answer
400,000
11. A program introducing ‘seahorse hotels’ was developed to help reverse the decline of White’s Seahorse in Sydney Harbour, creating safe spaces for the species to thrive. What inspired the design of these Seahorse Hotels?
Reveal answer
Lost crab traps
So how did you go? Did you get a few right? Did you learn a thing or two?
