Feeling nauti? We’ve got a quiz for that

By Natalie Kikken, Arli Fender-Barnett

7 June 2019

1 minute read

Get your dose of vitamin sea with our ocean quiz. Put your knowledge to the test to celebrate World Oceans Day on 8 June. Shell yeah!

Whether you’re a surfer, swimmer, sun-bather or just love a good, greasy fish and chips session by the shore, the ocean is a big part of our lives. It impacts our economy, climate, and health and ultimately provides us with the air we breathe and food we eat. But how deep is your knowledge of our oceans?

In honour of World Oceans Day, we’ve looked beyond the shore to test your knowledge and hopefully provide a few more facts on our great blue planet.

Turtle waving under water

Are you ready to sink or swim in this ocean quiz?


As much as 80 per cent of the oxygen we breathe comes from plants in the ocean.

The Mariana Trench is thought to be the deepest part of the world’s ocean, but it’s not as deep as Mount Everest is tall.

Which marine debris item has the highest chance of killing seabirds if eaten?

How many calories does a whale receive from one single mouthful of food?

How many eggs does a shy albatross lay at one time?

How many babies does a pregnant whale shark give birth to?

How much more carbon does wetland vegetation (seagrass, mangroves and marshes) store compared to a hectare of tropical forest?

How long is the Great Barrier Reef?

How much ice has Antarctica lost in the last 25 years?

Endangered spotted handfish are endemic to which state?

What percentage of marine debris found on Australia’s coast is plastic?

What percentage of species known in the Great Australian Bight are found nowhere else in the world?

Australia has how many kilometres of continental coastline?