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Manta Ray diving Manta Point Bali Nusa Penida with Warnakali dive center

Manta Ray in Nusa Penida, Bali

Many divers come to Nusa Penida in Bali to meet two pelagic fish : the Manta ray and the Mola Mola. When you dive regularly in Nusa Penida, you see them very often. After a while, we want to know more and to share your passion. That’s the idea of this article, similar to the one about Mola Mola.

Manta Ray diving Nusa Penida Bali with Warnakali dive center

A manta ray in Nusa Penida

If you only want to know where to swim with manta ray in Bali, you can switch now to Manta Point page. This is where you are the more likely to meet them, in Nusa Penida, close to their cleaning station. But I am pretty sure that afterwards you will want to know more about this great fish and come back here ! 

At the cleaning station Nusa Penida Bali

At the cleaning station

Oceanic or reef manta ?

There are two types of mantas : the oceanic manta ray or giant manta ray (birostris) and the reef manta ray (alfredi). The one that you will see in Bali, and more specifically in Nusa Penida are reef manta rays. Their wingspan can reach 5 meters. They have pectoral fins, horn-shaped cephalic fins, a large, forward-facing mouth and five pairs of gill slits on their ventral surface.

Manta Ray diving Manta Point Nusa Penida Bali with Warnakali dive center

The 5 gill spits

Their back is generally black. But their ventral face is white with black marks that form a unique signature. Like a fingerprint.

There are also Mobula rays in Nusa Penida. They are smaller but you can sometimes confuse them with young mantas. The main difference is the position of the mouth, ventral in the Mobula ray, and a much shorter tail.

Diving Nusa Penida Bali with Warnakali dive center

Close encounter with a Manta Ray

Where manta ray lives ?

Mantas live in warm temperate, subtropical and tropical waters. The ocean manta migrates across open oceans. But the reef manta lives closer to the coast. It can also stay all year round on the same site as in Nusa Penida. The rays indeed come every day to Manta Point cleaning stations to get rid of their parasites. When they move away from the coasts the reef mantas can go as deep as 400 m.

A group of Manta Rays diving Nusa Penida Bali with Warnakali dive center

A group of Manta Rays

What is manta ray cleaning station ?

A cleaning station is a location where fish gather to be cleaned of their parasites present on their body, in their mouth or their gills. Cleaning stations are often located at the top of a coral head.

The ray slowly swim around or above the coral head while the cleaning fish eat the parasites. Rays and cleaning fishes form indeed a kind of symbiosis

Manta diving Bali Nusa penida with Warnakali dive center

At Manta Point

Around the station the rays can be alone. But they are most often in groups, which can reach dozens of individuals.

They sometimes jump, entirely or partially, out of the water. Why manta ray jump out of the water ? There have several possible explanations. Some people think this is another way to get rid of their parasites. Other than it is mating rites or a mode of communication.

Manta Rays diving Manta Point cleaning station Nusa Penida Bali

At the cleaning station

What does manta ray eat ?

The Manta ray feeds on zooplankton, in the form of shrimps, krill and planktonic crabs. It is therefore a suspensory animal! A manta eats about the equivalent of 13% of its own mass every month.

The manta ray locates its preys using its sight and smell. It swims slowly towards them and uses its cephalic fins to channel the food towards its wide open mouth. Then the water is filtered and comes out through the gills. When it swims without eating the cephalic fins are rolled up in helical form to be more hydrodynamic!

Cephalic fins Nusa Penida Bali

The cephalic fins

What about the babies ?

The gestation of a baby manta lasts more than a year. At birth, the little one measures between 1.30 meters and 1.50 meters. It will then double in size in one year. It is also estimated that a manta ray reproduces every 5 years and that it has a life expectancy of 50 years. During the breeding period, the Manta rays return to the open sea and the Manta point site is sometimes deserted.

Swiming with Manta rays in Nusa Penida Bali with Warnakali dive center

Diving with Manta Rays

Are manta ray dangerous ?

No. Manta rays are not dangerous. They may come very close to you but they will avoid you. But like anything under the sea, don’t try to touch them. Even if they are very close …

Diving in Bali Nusa Penida with Warnakali dive center

Close view of a Manta Ray

Are manta ray endangered ?

The reef manta ray has no natural predators, apart from some great sharks, thanks to its large size and its ability to flee quickly in case of danger (24 km / h). But manta is nevertheless is classified as vulnerable by the Convention on Migratory Species. The main threats are overfishing, pollution and global warming.

In 2014 Indonesia banned the fishing and export of manta rays. Today it is therefore the largest sanctuary in the world for these animals, with , its 5.7 million km2 of oceans.

Diving with Manta Ray in Nusa Penida Bali with Warnakali dive center

Diving with a Manta Ray in Nusa Penida

Manta ray, where in Bali ?

There are two main sites to dive with manta ray in Nusa Penida, Bali. Manta Point cleaning stations are located on the southwest coast of the island, approximately 45 minutes by boat from Toyapakeh port.

It’s the perfect place to see them. Outside the breeding season, you will have about a 95% chance of seeing them. You can also have the chance to see them from the top of the cliffs. But you will not be able to go down to any beach from the cliff to swim with manta rays. 

Manta Ray fish diving Nusa Penida Bali with Warnakali dive center

A group of Manta Rays

Some dive centers stop at Manta Bay to shorten the trip and save on gas. The probability of seeing them is lower, around 80%, because there are many snorkeling boats chasing them. And, unlike Manta Point, the dive site is not really interesting except for mantas.

To learn all about Manta Point and our most beautiful Manta ray dives with Warnakali diving center or to contact us, click on one of these 2 buttons!