Marine Life & Conservation Blogs
Is the Dive industry doing enough to tackle plastic pollution?

Plastic pollution has finally hit the news and whilst the task ahead is still huge, there are signs that the tide is changing for plastic polluting our seas and oceans. In the UK, there has been a “Blue Planet Effect” where one extremely popular TV series has had a profound influence on the way people think about the plastic they use. On top of this with Sky TV running a campaign on their sporting channels and the mainstream TV and paper news outlets finally bringing the problem into our sitting rooms, the public and politicians are taking note and starting to act.
What is the problem?
Well – all the plastic that has ever been made still exists. It might break down into smaller and smaller pieces, but it never goes away. Here are some more sobering facts:
- Over 8 million tonnes of plastic ends up in the ocean every year.
- The UN estimates that there are 51 trillion microplastic particles in the ocean – 500 times more than the number of stars in the galaxy. Plastic debris outweighs plankton by a ratio of 36 to 1. Oceans are predicted to contain more plastic than fish by 2050.
- More than 5 trillion plastic pieces weighing over 250,000 tonnes afloat at sea. In July 2017, a plastic waste patch bigger than Mexico was discovered floating in the Pacific Ocean.
- Plastic products leach toxins that are now found in most people. Exposure to these toxins is linked to infertility, cancers and many other health problems.
- In 2016, 6,000 Great British Beach Clean volunteers picked up 268,384 individual pieces of plastic from 364 British beaches over just one weekend.
Wild animals get entangled in plastic, eat it or mistake it for food and feed it to their young. Over 260 species have been reported to ingest or become entangled in plastic debris, resulting in impaired movement and feeding, reduced reproductive output and death. Plastic is ingested by 31 species of marine mammal and more than 100 species of sea birds.
So what are divers doing to help?
Lots – but there is so much more to do! Of course, divers are usually passionate about the oceans and marine life, so can be the best advocates for promoting the idea of giving up single-use plastic.
Our very own Nick and Caroline Robertson-Brown helped to set up a campaign called SeaStraw that is helping bars and restaurants give up single-use plastic and they are having great success in Manchester where they live. Businesses can download and sign their pledge from the website, putting themselves on the Ocean Heroes Map, by clicking here.
We recently ran a story about a liveaboard fleet that has given up plastic straws and aims to be single-use plastic free by 2019. You can read about that here: www.scubaverse.com/liveaboard-fleet-makes-plastic-pledge
Lots of dive centers, resorts and liveaboards we have recently dived with are giving away re-usable water bottles, rather than single-use plastic cups.
Many dive centres organise beach clean-ups to remove plastic pollution from the shoreline and even underwater.
Charities such as Project Aware and the Marine Conservation Society collect both rubbish and vital data about plastic pollution in our oceans.
But there is more that can be done, and it will take divers to speak up, celebrating the good as well as calling out bad practices to help us stamp out plastic pollution in our oceans. For example, email your favourite dive manufacturer and ask them to use less plastic in their product packaging. Refuse single-use plastics like straws and cups from the bars and restaurants you frequent on diving trips and in every day life. Don’t take part in balloon releases. Every little thing you do will help.
Contact Us
We want to know what you have encountered on your dive trips around the world. What great initiatives have you seen? Please give a shout out to the dive establishments that are doing their bit and give them the recognition they deserve. If you run a dive centre and are doing your bit – let us know.
Blogs
The Sardine Run Controversy: Are We Undervaluing One of Nature’s Greatest Shows?

Every year, South Africa’s Sardine Run draws thousands of visitors, eager to witness one of the most spectacular marine wildlife events on the planet. Shoals of sardines stretch for miles, attracting a feeding frenzy of predators, including dolphins, seabirds, whales, and, of course, sharks. But while this natural wonder is a goldmine for ecotourism, some argue that it disrupts marine ecosystems or that shark tourism is an unnecessary risk.
The reality?
The Sardine Run doesn’t just showcase nature’s brilliance, it actively protects it.
A Predator Worth More Alive Than Dead
Sharks are the apex predators of the Sardine Run, and their presence is a major draw for divers, filmmakers, and tourists. But beyond the thrill, there’s a critical financial argument to be made: sharks are far more valuable alive than dead. A report by Oceana found that shark ecotourism generates hundreds of millions of dollars globally, while a single dead shark, caught for its fins or meat, is worth mere pennies in comparison.
According to Pew Trusts, reef sharks in Palau contribute an estimated $1.9 million each over their lifetimes through tourism, whereas a single dead shark fetches only $108 at market. The same economic principle applies to South Africa’s waters, where a live shark supports local businesses, jobs, and conservation efforts through sustainable tourism. The question then becomes: why are some still advocating for the mass culling of these creatures when they’re worth exponentially more alive?
Sharks Are Not the Enemy
Despite their economic value, sharks face persistent threats in South Africa. Misguided fears about shark attacks fuel calls for lethal control measures like drumlines and shark nets; outdated and ecologically damaging practices that indiscriminately kill marine life, including endangered species.
Ironically, these same sharks drive South Africa’s multimillion-dollar dive tourism industry, proving that their survival is inextricably linked to the economy.
By protecting the predators of the Sardine Run, South Africa preserves an ecological spectacle while securing jobs in tourism, hospitality, and marine conservation. It’s ensuring that communities along the coast continue to benefit from this natural event for generations to come.
From Passive Observers to Active Conservationists
“In the end, we will conserve only what we love; we will love only what we understand; and we will understand only what we are taught.”
Baba Dioum’s quote perfectly encapsulates why the Sardine Run and shark conservation efforts are so vital.
“We will conserve only what we love.” Experiencing the Sardine Run first and seeing sharks glide effortlessly through bait balls and feeling the sheer energy of the ocean, creates an emotional connection that turns spectators into advocates. It’s hard not to love something so breathtakingly wild.
“We will love only what we understand.” Sharks have long been vilified, but when people see them in their natural role as apex predators, shaping marine ecosystems, their fear turns into fascination. The more we understand sharks, the more we appreciate their importance in maintaining ocean health.
“We will understand only what we are taught.” Ecotourism, like responsible Sardine Run expeditions, plays a huge role in education. Through firsthand encounters, expert guides, and conservation messaging, people learn that sharks are worth far more alive than dead. This, in turn, supports coastal economies, balancing marine ecosystems, and ensuring the future of this natural phenomenon.
Critics argue that the Sardine Run disrupts natural feeding patterns or stresses marine life due to increased human activity. However, scientific studies suggest that well-managed ecotourism can actually enhance conservation efforts. The presence of responsible tour operators discourages illegal fishing, promotes marine research, and generates funds for conservation initiatives.
Furthermore, ecotourism advocates education and awareness. Anyone who’s ever been lucky enough to experience the sardine run will tell you how incredible it is to witness the greatest shoal on Earth and often leave as passionate champions for ocean conservation. In an age where marine species are vanishing at alarming rates, the Sardine Run may be one of the few large-scale events that turn passive observers into active conservationists.
The Sardine Run is an opportunity to teach, inspire, and create lifelong ocean ambassadors. If we want to protect sharks and the marine environments they support, we need more people to experience, understand, and ultimately, fight for them.
My Sardine Run Experience (Still Seems Surreal!)
Experiencing the Sardine Run firsthand in Cintsa on South Africa’s Wild Coast was one of the most incredible events of my life. I swam alongside foraging dusky sharks in focused grace, watched hundreds of common dolphins expertly and intelligently herd sardines into bait balls, observed the honed precision of countless Cape gannets diving, and saw gentle but giant Bryde’s whales effortlessly slicing through the schools.
My friends who stayed longer even had the amazing opportunity to interact with humpback whales. Cintsa is a hidden gem for the Sardine Run, offering an untouched wilderness without the intense competition of other operators. The encounters I had weren’t just breathtaking, they reinforced why this natural event is invaluable for conservation and ecotourism.
I will be forever grateful to Go Dive Mossel Bay for their incredible passion for the ocean and the unforgettable experiences they’ve given me. Their expertise and dedication to marine conservation made my Sardine Run adventure in Cintsa extraordinary. Cintsa is truly a hidden gem for the Sardine Run, offering an intimate, untouched wilderness where the ocean comes alive without the crowds.
The Bottom Line: The Sardine Run is Vital for Conservation in South Africa
The real controversy isn’t whether the Sardine Run is good or bad for conservation. It’s why we aren’t doing more to protect the species that make it so extraordinary.
Instead of fearing sharks or debating their presence, we should be celebrating them as a cornerstone of South Africa’s ecotourism economy.
Every shark in the Sardine Run represents a long-term financial investment, one that benefits local communities far more than a fleeting profit from finning or culling.
So, the next time someone asks whether the Sardine Run is a threat, remind them of this: a dead shark is worth a few dollars, but a live shark fuels an entire industry. South Africa’s future… both ecological and economic… depends on making the right choice.
Photos: Frogfish Photography
Marine Life & Conservation Blogs
Shark Trust Expedition Dives in The Bahamas

In our last blog we talked about why the Shark Trust had been in The Bahamas in December. With the underwater part of the expedition focused on getting 360 footage for a new immersive shark experience, OneOcean360: A Shark Story, that will be launched later this year. Now, let’s tell you a little bit more about the diving we did, along some more surprising shark sightings!
The Shark Trust 3-island expedition, which was fully funded and supported by the Bahamas Ministry of Tourism, started in Nassau. And we were booked to do 2 days of diving with Stuart Cove’s Dive Bahamas. We packed in as much diving as possible, leaving as soon as the boat was loaded and returning as the sun was setting, covering 7 dive sites over the 2 days, with a mix of reef and wrecks to ensure we got as much varied footage as possible.
Pumpkin Patch saw us hang out with a very chilled turtle while Caribbean Reef Sharks swam along the drop off beside us. We visited a “wreck” structure built for the filming of a James Bond film that was now covered in bright corals and home to a multitude of reef fish. Steel Forest saw us diver some “proper” wrecks that have been sunk alongside each other. Glass fish swirled under overhangs and larger fish hung motionless in the wheelhouse. Southern Sting rays lay buried in the sandy seabed alongside. Our final dive of the day, as the sun started to set, Ridges, combined a reef and wreck where we caught a fleeting glimpse of a Bull Shark as we ascended the line. It was a great diving day that gave us the perfect introduction to the underwater world of The Bahamas.
Our second day was going to focus on getting close up footage of Caribbean Reef Sharks on both wrecks and reef. The Ray of Hope and Big Crabs wrecks are perfect for this. With our guide placing bait boxes inside the wrecks to attract the sharks, and with our cameras setup on the wreck structure, we could back away and let the sharks do their thing without us disturbing them or being in the 360 filming frame. With clear water and plenty of sharks, the footage we came away with in pretty striking.
Next stop: Bimini. Great Hammerhead Sharks are the number one attraction here. And we were able to join Neal Watsons Bimini Scuba for a 2-tank dive with these magnificent sharks, along with the Nurse Sharks that like to join in with the experience. But we were also able to snorkel with juvenile Lemon Sharks in the Mangroves, see Bull Sharks and spotted eagle rays from a submarine experience and from the dock side. Our second day of diving saw us dive the SS Sapona wreck and then experience the Caribbean Reef Sharks on the reef. Bimini really does allow you to pack in a load of shark and ray experiences in a short space of time.
Finally, we headed to Grand Bahama. Whilst much of our time was spent above the water meeting people working to conserve different marine habitats (watch this space for more information on this) – we did manage to squeeze in a couple of dives on the reefs here and were delighted to see both Caribbean Reef Shark and Southern Stingrays on both. Our final shark and ray experience saw us take a tour to Sandy Cay with Keith Cooper. We were able to get footage of stingrays, lemon and blacktip reef sharks on the seagrass and over the sandy seabed. Sometimes just in ankle deep water.
If you are heading to the Go Diving Show – then you will be able to see a short 360 film, using our VR headsets, that shows many of these experiences. Please come and say hello to the Shark Trust team on the Diverse Travel stand (340). We will also be on The Bahamas stand twice a day to chat to people about our experiences on the islands. And Diverse travel will have special offers on travel to The Bahamas should you want to follow in our fin-kicks.
To find out more about the work of he Shark Trust and how you can support us, visit out website www.sharktrust.org
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