Hanifaru Bay: An Ethical Journey to Witness Manta Rays

Large group of Manta Rays|Group of Manta Rays|Manta Ray near Surface|Manta Ray with diver|Manta Rays with diver
Large group of Manta Rays|Group of Manta Rays|Manta Ray near Surface|Manta Ray with diver|Manta Rays with diver

The Maldives are home to some of the mostbreathtaking marine life in the world, and one of the highlights for many visitors is the chance to swim with manta rays – at Hanifaru Bay, you can be in the water with large numbers of these impressive creatures, as Amanda Delaforce explains.

Photographs by Amanda Delaforce Travel and Photography

Understanding Reef Manta Rays

Reef manta rays (Mobula alfredi) are curious, gentle and acrobatic creatures that often approach divers and snorkellers in the water. It’s not uncommon to see them performing somersaults and backflips. Watching their graceful manoeuvrings, it’s easy to see why many cultures hold manta rays in high regard and consider them sacred animals.

Also read: Talk the boss into funding your manta dive-trip!

Promoting Responsible Wildlife Tourism

Group of Manta Rays
Group of Manta Rays

But, it is essential to remember that these vulnerable animals are wild and should be respected. That’s why it’s important to follow the Maldives Manta Ray Project guidelines, which promote responsible diving and snorkelling practices.

The Role of the Manta Trust

The Manta Trust has created an evidenced-based code of conduct for swimming and diving with manta rays. Tour operators like dive guides can introduce this to their activities, offering a responsible approach to wildlife tourism that enhances the experience for the guests and causes less disturbance on the mantas. “It’s a win-win,” says Hannah Moloney, a Ph.D. student working in the Maldives and across Australia.

Collaboration for Conservation

Manta Ray near Surface
Manta Ray near Surface

I met Hannah through her research work with Project Manta Australia, but she also cross-collaborates with the Maldives Manta Ray Project, which works to increase protection for manta rays and the ecosystems they call home through research, education and collaboration. They work with citizen scientists to collect data on manta rays and other marine life in the Maldives and promote conservation and responsible tourism.

The Fascinating World of Manta Rays

Manta rays are the largest ray species, with some individuals growing up to five-and-a-half metres and weighing over 700kg. They are unique and fascinating for so many reasons. They exhibit complex behaviours such as coordinated feeding to enhance feeding efficiency and avoid collisions. They are ovoviviparous, meaning that the eggs hatch within the mother’s body and the young are born alive.

Hanifaru Bay: A Manta Ray Paradise

Manta Ray with diver
Manta Ray with diver

Hanifaru Bay is one of the best places in the world to see manta rays. They are typically found from May to November, with the season peaking between August to October around full and new moons. They are known to aggregate in this marine protected area because of the abundance of zooplankton that concentrates in the cul-de-sac. Oceanographic influences brings a rich supply of nutrients and zooplankton to the site. The bay is so nutrient-rich, in fact, the water can look milky with particle matter. Mantas feed by swimming through the water with their mouths open, filtering zooplankton (copepods, arrow worms, salps and crustacean larvae like crabs) through their gills.

Feeding Behaviors of Manta Rays

Mantas use their cephalic lobes (the flappy things near their mouths) like a funnel to increase the concentration of plankton. They also co-ordinate their feeding behaviours to ‘feed with friends’ to make feeding more efficient. When the concentration of plankton is high, they may line up in a single file and use the slipstream of the manta in front. This is called chain feeding. If it’s very high, they can also cyclone feed, creating huge feeding chains, and swimming in a spiral, creating a vortex to pull the plankton into their open mouths. It is an extraordinary and rare phenomenon that is awe-inspiring to see. The bay’s coral reefs also provide a safe place for the manta rays to rest and breed.

“Hanifaru Bay is one of the best places in the world to see manta rays. They are typically found from May to November, with the season peaking between August to October around full and new moons” 

The Ecological Importance of Manta Rays

Manta Rays with diver
Manta Rays with diver

Manta rays play a vital role in marine ecosystems by controlling the populations of smaller fish and plankton, which can have cascading effects on the entire ecosystem. Some manta rays have been known to migrate long distances, travelling thousands of miles between feeding and breeding grounds.

Protecting Manta Rays for the Future

Swimming with manta rays in the Maldives is guaranteed to be an unforgettable experience. And by travelling with an ethical guide and following the guidelines set by the Maldivian Manta Ray Project and citizen science groups like the Maldives Whale Shark Research Programme, you will be helping protect these amazing animals and their marine habitat for generations to come. 

About the author
Amanda Delaforce is a marine biologist and underwater photographer who has led dozens of ethical dive expeditions to the Maldives. More information, amanda@ amandadelaforce.com; Website: amandadelaforce

Protecting manta rays

Manta rays face several major threats, including:

Fishing: Manta rays are often targeted by fishing operations for their gill rakers, which are used in traditional Chinese medicine. This has led to significant declines in manta ray populations in some areas.

Bycatch: Manta rays are often caught as bycatch in fishing operations targeting other species. This can result in injury or death for the manta rays.

Habitat loss: Manta rays depend on specific habitats for feeding and breeding, and the destruction of these habitats can have a negative impact on their populations.

Climate change: Climate change affects ocean ecosystems in various ways, and manta rays will likely be affected. For example, rising ocean temperatures can cause coral bleaching and acidification, harming the plankton that manta rays feed on.

Pollution: In the oceans, such as plastic and chemicals, pollution can harm manta rays and their food sources.

Tourism: In some areas, over-tourism can harm manta rays and their habitats if not managed properly.

Lack of legal protections: Manta rays are listed as vulnerable by the International Union for Conservation of Nature (IUCN) and as endangered under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). But in some countries, they still lack legal protections.


This article was originally published in Scuba Diver ANZ #57.

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YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS43RkJGOTAwRDhCOEQ1RjIy

Is This The Best Dive Center Ever? W\@wakatobidiveresort

@sennacher 
#askmark Hi there, regarding DSMBs. I’m no expert whatsoever and normally I deploy it correctly. This weekend we dove on very strong current and I almost lose my breath while deploying it (mouth inflate) as it tangled a bit on my reg. It scared the sh&t out of me so. Is there any “little cylinder” kind of thing in order to keep my reg in my mouth to deploy it safer?  I haven’t tried to do it with my LPI… but asume it would tangle also.
Thanks
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@sennacher
#askmark Hi there, regarding DSMBs. I’m no expert whatsoever and normally I deploy it correctly. This weekend we dove on very strong current and I almost lose my breath while deploying it (mouth inflate) as it tangled a bit on my reg. It scared the sh&t out of me so. Is there any “little cylinder” kind of thing in order to keep my reg in my mouth to deploy it safer? I haven’t tried to do it with my LPI… but asume it would tangle also.
Thanks
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Is There an Easier Way to Deploy a dSMB?

How Twinset Valves Work In Scuba Diving | Shutdown Drills And Isolator Tips Explained #scubadiving #askmark #twinset

Confused about how to use twinset valves or perform a proper valve shutdown drill? You’re not alone.

In this AskMark episode, Mark explains how valves work on twin cylinders, including how to safely open and close them, how isolator valves function, and why valve drills (also known as shutdown drills or V-Drills) are critical for diagnosing leaks during technical and recreational dives. Please visit our website for more Scuba news, underwater photography, hints & advice, and travel reports: https://divernet.com/ 

Mark also shares tips on muscle memory for reaching your left and right posts, isolator-first vs isolator-last logic, and how to prevent over-tightening or unsafe valve positioning. This guide is perfect for divers transitioning to twinsets, sidemount divers curious about manifold setups, or anyone wanting to improve their gas management skills. 

Let us know in the comments how your instructor taught valve drills and don’t forget to leave your questions using #AskMark to get featured in a future video. 

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Disclaimer: The information in this video is not intended nor implied to be a substitute for professional SCUBA Training. This video's content, including text, graphics, images, and information, is for general information purposes only and does not replace training from a qualified Dive Instructor.

🔎 Related Phrases:

How Twinset Valves Work In Scuba Diving, Shutdown Drills And Isolator Tips Explained, How Twinset Valves Work In Diving, Scuba Valve Drill Tutorial, Shutdown Drill For Twin Cylinders, How To Use Twinset Isolator Valve, Twinset Manifold Explained, Best Way To Close Dive Valves, V-Drill For Scuba Divers, Twin Cylinder Gas Management Tips, Scuba Regulator Shutdown Steps, How To Practice Twinset Valve Drills, Muscle Memory For Valve Shutdowns

#scubadiving #askmark #twinset #scubavalves #shutdownskills #divingsafety #scubatraining #scubatech #divetips #manifoldvalve #valvedrill #scubagear #divingtechniques #scubacommunity #technicaldiving

How Do Valves Work on Twin Cylinders? #askmark
@mostafametwally1
#askmark hi Mark. Could you do a video on how to deal with the valves and manifold on twin cylinders. It’s confusing to remember which way to open the valves and it’s easy to get wrong particularly in emergencies. Thanks
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How Twinset Valves Work In Scuba Diving | Shutdown Drills And Isolator Tips Explained

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