Scientists find it's not the size of waves eating away our shoreline cliffs, but the type.

It's our shortest day - so how much extra daylight can we expect tomorrow?

Up to 64,000 turtles have been filmed swarming a Queensland island in stunning footage.

Scientists make promising headway in $11.5m mega-project to better understand our oceans.

They've only just been discovered, but NZ's giant blue whales already face climate threat.

The injured Black Turtle is being cared for at Auckland Zoo and is in critical condition.

New goal of zero seabird bycatch deaths won't work without cameras on boats, groups say.

Investigation into Auckland microplastic pollution points to fibres from washing clothes.

"We looked out of the hatch and saw a whole lot of fins."

Combined land and ocean data show 2019 was NZ region's hottest year, scientist says.

Blistering heat could tempt weak swimmers into dangerous seas today, forecaster warns.

Members of the public are urged to report any suspicious fishing activity.

"We finally found out why the fishing has been so bad."

It came on the same day four pilot whales died after stranding in the Coromandel.

It comes after Orewa beach was closed on Monday following a sighting of two large sharks.

Patch of water bigger than New Zealand has temperatures six degrees warmer than average.

A discarded fishing braid sliced through the calf's flesh.

NZ sea temperatures are warming - and forecasters aren't ruling out third marine heatwave.

Climate change named as one of four big threats hurting NZ's vast blue backyard.

Something called the Indian Ocean Dipole may bring big bouts of spring rain. What is it?

A fundraising page aims to support Emily's family and preserve her memory.

Thousands of people around the globe stage rallies to call attention to climate change.

A giant pumice island is drifting towards Australia. Scientists say it's great news.