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Norfolk Island's Reef

Discover a fragile paradise – Norfolk Island's beaches, lagoons and coral reef
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    • Eels
    • Kingston, Norfolk Island
    • Nudibranchs, Sea Slugs and Flatworms
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    • Sharks
    • Sea Anemones
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  • Out on a swim - blog
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Out on A Swim

‘Out on a swim’ is a coral reef blog that tells the stories of the characters who live under the waves and what has caught my eye when ‘out on a swim’ in the lagoons of Norfolk Island. It is also a record of the difficulties Norfolk Island’s reef faces, like many others around the world, as a result of the poor water quality that has been allowed to flow onto it.

This page shows the most recent blog posts. For the complete catalogue, visit the ‘Out on a swim index’ page.

This blog is rated in the Top 20 Coral Reef Blogs in the world.

My school’s logo and motto, Christ me spede

Honoured to be featured

September 30, 2025

I left Stamford High School in the UK back in 1978, which is (to save you the maths) edging towards 50 years ago. So you can imagine my surprise when I was asked to send in some images and do an interview for an article about my work in the school’s glossy annual magazine. The interview itself was done so long ago – and the poor interviewer has since moved on to greener pastures – that I assumed the whole thing had quietly disappeared. I’d even forgotten about it.

Until yesterday, when a note from the school popped up asking if I’d like a hard copy, as the article was now both printed and online. So, for better or worse, here it is below. If you’d rather read a PDF version, just click on either image.

The whole thing has stirred up a mix of memories: the happy ones of geography field trips, painstaking pencil sketches of paramecium and earthworm cross-sections, and midnight feasts (straight out of the Famous Five). And the less happy ones – the dreaded periodic table (my lifelong bête noire), wrestling with slide rules and log tables, and learning to make a cup of tea in cookery. I ditched cookery fairly quickly and picked up Latin instead. With A-levels in physics, geography and biology, I left school, set aside the sciences, and eventually wandered into the humanities as an editor and writer. So yes – the Latin did come in handy after all, sort of!

It feels both strange and rather lovely to be recognised all these years later. If nothing else, I hope it shows that you’re never too old to learn new things or take on new challenges.

In Biodiversity, Ecosystem, Education
Celebrating Biodiversity Month on Norfolk Island →
Featured
Honoured to be featured
Sep 30, 2025
Honoured to be featured
Sep 30, 2025

I left school in the UK nearly 50 years ago, so it was a pleasant surprise to be invited to share some images and take part in an interview for an article about my work, to be published in the annual glossy magazine the school now produces. Here is the end product.

Sep 30, 2025
Celebrating Biodiversity Month on Norfolk Island
Sep 7, 2025
Celebrating Biodiversity Month on Norfolk Island
Sep 7, 2025

September is Biodiversity Month – the perfect time to celebrate the astonishing variety of life on Norfolk Island’s reef. From new fish sightings to coral mosaics, every observation is a reminder of how much there is still to learn and protect.

Read more about why biodiversity matters, globally and right here in our lagoon.

Sep 7, 2025
The fate of a coral colony when it succumbs to white syndrome – four years on
Aug 24, 2025
The fate of a coral colony when it succumbs to white syndrome – four years on
Aug 24, 2025

I’ve tracked one plating Acropora coral from 2021 to 2025. In just a few weeks, white syndrome wiped it out. Nearly four years years on, it’s still smothered in algae and sea squirts, with only the tiniest hint of new growth. It’s a stark reminder: without tackling the root cause, we’re just watching the same sad story repeat itself.

Aug 24, 2025
The Candy-Striped Cleaner Keeping the Reef Healthy
Aug 17, 2025
The Candy-Striped Cleaner Keeping the Reef Healthy
Aug 17, 2025

Candy-cane stripes, long white feelers, and a reef spa on offer – the banded coral shrimp waves its antennae to advertise cleaning services to passing fish.

Aug 17, 2025
Biomimicry: How a Boxfish Caught Mercedes Benz’s Eye
Aug 10, 2025
Biomimicry: How a Boxfish Caught Mercedes Benz’s Eye
Aug 10, 2025

Meet Mr Lemonhead – our lagoon’s teeny yellow boxfish with a big design legacy. He inspired a Mercedes Benz concept car, proving how nature is full of surprises. And he shares the lagoon with other critters whose tricks have also shaped real-world inventions.

Aug 10, 2025
Patchwork Corals: How Colonies Fuse to Form Living Mosaics
Aug 3, 2025
Patchwork Corals: How Colonies Fuse to Form Living Mosaics
Aug 3, 2025

Some corals wear more than one colour for a reason. When Paragoniastrea australensis colonies fuse early in life, they form living mosaics. A beautiful reminder of coral cooperation on Norfolk Island’s reef.

Aug 3, 2025
Reef relief
Jul 28, 2025
Reef relief
Jul 28, 2025

Today, 28 July, is World Nature Conservation Day. After the dry 2024, Norfolk Island’s reef is looking healthier – a brief reprieve as less water - laden with nutrients - flowed into the lagoon. These photos show what’s possible. It’s a reminder that recovery is within reach – though renewed runoff could quickly undo the gains.

Jul 28, 2025
Emily Bay's big 'brain' coral
Jul 20, 2025
Emily Bay's big 'brain' coral
Jul 20, 2025

In Emily Bay, Norfolk Island, a single coral bommie – Paragoniastrea australensis – has stood for decades as a micro-reef, harbouring diverse marine life and local memories. Once photographed in 1988 and still thriving today, it remains a keystone of reef biodiversity and a living link between past and present.

Jul 20, 2025
Biodiversity matters
Jul 14, 2025
Biodiversity matters
Jul 14, 2025

Over five and a half years of snorkelling Norfolk’s lagoon, we’ve documented 23 fish species not previously recorded in this area. Some are local ghosts, others climate migrants. These observations help us understand and protect what makes our reef so special.

Jul 14, 2025
Poop power
Jun 17, 2025
Poop power
Jun 17, 2025

Not all poop on a reef is bad poop. In fact some kinds of poop can be a reef’s most important invisible engine. Fish poop, bird poop – even poop that gets eaten again by other fish – all of it keeps the ecosystem ticking over in a way that’s nothing short of extraordinary.

Jun 17, 2025

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