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Martin Stevens @wildlifevision.bsky.social · 30/09/2026

From underwater volcanic seascapes to pink squid, lionfish, spawning fireworms and more - new film about Patmos Island 🇬🇷 out now #marinelife #patmosisland #visitgreece #marinebiology youtu.be/cXLgiA17U9s?...

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Martin Stevens @wildlifevision.bsky.social · 17/08/2026

New film out on the #jellyfish of the #cornwall coast #marinelife #marinebiology Watch here youtu.be/DVC5dd60SGQ?...

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Martin Stevens @wildlifevision.bsky.social · 26/07/2026

The incredible bright orange ‘disco Doris’ #seaslug - a common sight in #rockpools in #cornwall this year #marinelife Watch here: youtu.be/JCiDz7LbKgA?...

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Martin Stevens @wildlifevision.bsky.social · 19/07/2026

Late spring and early summer in the #rockpools of #cornwall - new film out now. #marinelife #seaslugs Watch here: youtu.be/D4ckhjGHGR8?...

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Martin Stevens @wildlifevision.bsky.social · 12/07/2026

Short #underwater video just posted about the simply unreal rainbow #seaslug that has become quite common locally in #cornwall - it’s astonishingly colourful! Watch here: youtu.be/jo-kWr2vg_c?... #nudibranchs #marinelife

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Martin Stevens @wildlifevision.bsky.social · 21/06/2026

New film out now on incredible magic #seaweed and nest building corkwing wrasse in #Cornwall youtu.be/NH9rBcfF14Y?... #marinelife #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 04/06/2026

Disco Doris 🪩 #seaslug crawling amongst the rainbow wrack #seaweed Before this spring I’d never found a disco Doris nudibranch, now I’ve seen them on >10 occasions. This slug was happily crawling over the seaweed in a shallow #rockpool. #nudibranchs #marinelife #cornwallcoast #springwatch

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Martin Stevens @wildlifevision.bsky.social · 31/05/2026

New film on the #underwater wildlife of #Cornwall that is around right now. From sharks to huge spider crabs. Link below #marinelife #marinebiology #britishwildlife youtu.be/ifh9m_M9Kdk?...

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Martin Stevens @wildlifevision.bsky.social · 21/05/2026

Want to take #underwater macro photos and film with a smartphone - here’s my review of DiveVolk’s Pro Macro lens youtu.be/Z201CLK7Eyk?... #shotoniphone #underwaterphotography

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Martin Stevens @wildlifevision.bsky.social · 16/05/2026

Want to learn, or improve, #underwater photography? Limited spaces left on our workshop (with Dive UK), #Cornwall: June 13 &14 Inc local dives, tutorials, practice sessions in the centre, pool, & diving, image reviews Info here diveuk.uk/pages/underw... #underwaterphotography #diving #marinelife

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Reposted by Martin Stevens

Martin Stevens @wildlifevision.bsky.social · 12/05/2026

Watch the full film 📽️ here 🦐🐠🦞🦀🦈 youtu.be/5tZkGtAtXEw?...

youtu.be

The Incredible Wildlife in Cornwall’s Springtime Rock Pools

YouTube video by Wildlife Vision

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Reposted by Martin Stevens

Martin Stevens @wildlifevision.bsky.social · 12/05/2026

The incredible wildlife in the #rockpools of #Cornwall in springtime. New video out now, from spider crabs to sea slugs youtu.be/5tZkGtAtXEw?... #marinebiology #marinelife #tidepools

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Martin Stevens @wildlifevision.bsky.social · 12/05/2026

The incredible wildlife in the #rockpools of #Cornwall in springtime. New video out now, from spider crabs to sea slugs youtu.be/5tZkGtAtXEw?... #marinebiology #marinelife #tidepools

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Martin Stevens @wildlifevision.bsky.social · 12/05/2026

A few recent shots from the #kelpforest - including the little catsharks we get locally and the large spiny starfish, and one of the biggest spider crabs I’ve ever seen. #cornwallcoast #marinelife #uknature

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Martin Stevens @wildlifevision.bsky.social · 03/05/2026

Spring in Cornwall - underwater We recently had some stunning conditions locally here in #Cornwall, with clear water, calm seas, and stunning clear visibility. The underwater seascapes, #kelpforests, and seaweed gardens looking amazing! #marinelife #seaweed

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Reposted by Martin Stevens

Martin Stevens @wildlifevision.bsky.social · 01/05/2026

Sharks, spider crabs, starfish, & sunshine underwater I’ve been documenting spring in Cornwall’s kelp forests Despite unsettled weather, the visibility at times has been stunning, with lots of wildlife. Full film out now: youtu.be/kEsTVksME_4?... #MarineBiology #UKWildlife #Cornwall #marinelife

youtu.be

Sharks & Spider Crabs in Cornwall’s Kelp Forest (Spring Diving)

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 01/05/2026

youtu.be

Sharks & Spider Crabs in Cornwall’s Kelp Forest (Spring Diving)

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 30/04/2026

Spring in the #kelp forests of #cornwall - new film out now! Here’s a short preview but the full film is available on my YouTube channel #marinebiology #ukwildlife #cornwallcoast

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Martin Stevens @wildlifevision.bsky.social · 28/04/2026

Details - this is a rainbow #seaslug up close. They are incredibly colourful to the naked eye but seen magnified the colours are unreal! #cornwallcoast #marinebiology #nudibranchs #ukwildlife

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Martin Stevens @wildlifevision.bsky.social · 23/04/2026

One of my favourite creatures to find locally - a cluster of blue-rayed limpets on kelp Taken with an OM1 and OM 90mm macro lens. #cornwallwildlife #uknature #marinebiology #seaweed #macrophotography

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Martin Stevens @wildlifevision.bsky.social · 17/04/2026

Resharing this as Bluesky seem to be down most of yesterday… Brand new film all about the incredible and amazingly colourful #seaslugs found locally in Cornwall out now #marinebiology #cornwallcoast #marinewildlife youtu.be/M7xo6rLWtho?...

youtu.be

Hidden Jewels: The Alien Lives of Cornwall’s Sea Slugs

YouTube video by Wildlife Vision

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Reposted by Martin Stevens

Martin Stevens @wildlifevision.bsky.social · 16/04/2026

I just released a 10-minute film diving into the biology and beauty of these "ocean jewels” Watch the full film here: youtu.be/M7xo6rLWtho?... 📽️

youtu.be

Hidden Jewels: The Alien Lives of Cornwall’s Sea Slugs

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 16/04/2026

There are over 100 species of #seaslug around the UK, many incredibly beautiful, some common, some rare or new arrivals 🌈🌊 I’ve spent a decade documenting the underwater world of #Cornwall and finding rare or new species has been a highlight #MarineBiology #marinewildlife #nudibranchs

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Martin Stevens @wildlifevision.bsky.social · 11/04/2026

One of the many Polycera #seaslugs that have been around lately. This one crawling around on some of the bright red harpoon seaweed. #cornwallcoast #ukwildlife #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 08/04/2026

Spring sea slugs - so many around at the moment. The once rare rainbow #seaslugs are becoming quite common, more Polycera around than I’ve seen before, my second ever disco Doris. Here’s some recent clips - a teaser before something bigger out next week… #cornwallcoast #seaslugs #underwatermacro

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Martin Stevens @wildlifevision.bsky.social · 26/03/2026

New film all about the #underwater seasons and wildlife in #Cornwall just out! youtu.be/Kj0KC9V87uw?... It’s taken a lot of work (over a year of filming), so super grateful for any views or engagement #marinebiology #wildlife

youtu.be

Cornwall Underwater Seasons

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 01/03/2026

If you’re potentially interested in using a #smartphone for underwater photography or filming, here’s an intro guide youtu.be/Do8lPNBlUzE?... #underwaterphotography #underwaterfilming #diving #snorkelling

youtu.be

Using Smartphones Underwater

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 18/02/2026

Next YouTube film is now live - have a watch if you want to see lots of marine #wildlife of #cornwall and underwater scenery #marinebiology #underwater #diving youtu.be/eIHkWLV-ZXY?...

youtu.be

Cornwall Underwater Wildlife

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 10/02/2026

Very excited to team up with Dive UK for underwater photography workshops in #Cornwall this summer! Booking now open diveuk.uk/pages/underw... #underwaterphotography #marinebiology #scubadiving

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Martin Stevens @wildlifevision.bsky.social · 09/02/2026

New video on winter rock pool marine #wildlife and #underwater photography I’ve been a bit quiet on here lately, partly focussing on making a series of films about the wildlife here and starting a YouTube channel. First full film out now: #marinebiology #cornwall youtu.be/DckPAAyWrNU?...

youtu.be

Winter rock pool photography

YouTube video by Wildlife Vision

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Martin Stevens @wildlifevision.bsky.social · 17/11/2025

The rare & beautiful violet sea snail - a predator of Portuguese Man O’War & by-the-wind sailors. It lives its whole life at the surface of the open ocean, using a bubble raft to stay afloat. It’s normally more common in warmer waters but occasionally seen here #marinebiology #marinelife #oceanlife

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Martin Stevens @wildlifevision.bsky.social · 24/10/2025

A mauve stinger #jellyfish in front of an avenue of yellow #seaweed. This from last autumn when we had huge blooms of these jellyfish - by contrast I’ve not seen a single one this year. #CornishWildlife #MarineLife #UnderwaterPhotography

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Martin Stevens @wildlifevision.bsky.social · 10/10/2025

Very fortunate to find another rainbow #seaslug the other day. This was the smallest I’ve seen - about the size of a grain of rice (next to my fingertip for scale). #cornwallwildlife #nudibranchs #ukunderwater #marinelife #uwphotography

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Martin Stevens @wildlifevision.bsky.social · 30/09/2025

Sea fog around the #Cornwall coast this morning at sunrise. Another stunning start to the day! #shotoniphone #cornishcoast #ukcoast

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Martin Stevens @wildlifevision.bsky.social · 29/09/2025

Cuttlefish changing colour over the sand - this is the same #cuttlefish but the sequence of photos shows how it can change its colour and texture for both camouflage and communication. #marinelife #underwaterphotography #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 27/09/2025

Recent beautiful autumn weather & spring low tides makes for a great chance to find wonderful #rockpool creatures - like these blue-rayed limpets, tiny cushions star (both less than 1 cm in size) and star ascidians. #marinelife #underwaterphotography #shotoniphone #ukunderwater #britishwildlife

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Martin Stevens @wildlifevision.bsky.social · 21/09/2025

Blue-rayed limpets just beneath the surface. They often gather in groups this time of year on the lower kelp to weather autumn storms. #shotoniphone #uknature #underwaterphoto #marinelife #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 18/09/2025

Back in the water in #cornwall after quite a long time out and lovely to see some #cuttlefish again. Very autumnal now and pretty rocky underwater! #marinelife #underwaterphotography #britishwildlife

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Martin Stevens @wildlifevision.bsky.social · 15/09/2025

About a year ago we had huge blooms of these beautiful (but painful) mauve stinger #jellyfish around the #Cornwall coast. On one day strong onshore winds washed them into the lower #rockpools. #marinelife #ukunderwater #underwaterphotography #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 07/09/2025

Two tiny #seaslugs from Anilao in the Philippines: Favorinus tsuruganus, which feeds on the eggs of other sea slugs, and a Shaun the sheep nudibranch. Amazing how tiny these creatures are, barely visible to a naked eye. #marinelife #nudibranchs #underwatermacro #underwaterphotographer #marinebiology

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Martin Stevens @wildlifevision.bsky.social · 28/08/2025

Have you ever seen an #octopus clean and then use the toilet? This individual was outside its den so I set a #gopro to record its behaviour. From Patmos, #Greece. Plenty more film and photos to follow if the trip. #marinebiology #marinelife #underwaterfilming #wildlife

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Martin Stevens @wildlifevision.bsky.social · 20/08/2025

Recently back from a holiday in #Greece, Patmos Island with a bunch of videos and photos from underwater. One of the highlights was the wonderful #octopus. #shotoniphone #marinelife #underwaterphotography

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Martin Stevens @wildlifevision.bsky.social · 31/07/2025

A beautiful Polycera #seaslug in the shallow waters in a lower #rockpool in #cornwall. Love seeing these creatures. #underwaterphotography #ukunderwater #marinelife #nudibranch

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