A favorite conversation on our trips is, “What’s your favorite species to snorkel with?” It’s a question that often sparks friendly debates, storytelling, and a shared sense of wonder at just how much of the ocean remains for us to explore. Unsurprisingly, the answers to this question vary hugely. Some prefer microscopic species, others the camouflaged creatures you can barely see, while some are in it for the coral and others prefer the big stuff, like whales and sharks! Yet despite these different preferences, there’s one thing all snorkelers share: the sense of connection to nature that snorkeling gives us. It takes us out of our everyday lives and puts us smack bang in the middle of a natural ecosystem. No animal quite matches this feeling of connection like the manta ray. Having a manta ray barrel roll inches from your face or glide past you like a spaceship is an encounter that never fails to leave people in absolute awe.
Manta Ray Depth Depends On Behavior
How deep a manta ray swims depends largely on what it’s doing. When traveling between feeding and mating sites, manta rays can cover huge distances and dive surprisingly deep, up to 4,000 feet. These deep dives allow them to collect topographical data that helps them navigate the big blue.
When it’s time to eat, however, mantas stay much closer to the surface, usually within the top 160 feet of water. As filter feeders, they eat plankton, which is most abundant in these shallower depths. One easy way to spot a feeding manta is by looking at its cephalic lobes: the horn-like extensions beside its mouth. When feeding, these unfurl to funnel plankton rich water straight into their mouths.Another reason manta rays find themselves in the shallows is bath time! Mantas can’t remove stubborn hitchhikers like barnacles by themselves, so they visit what we call manta cleaning stations. These are typically areas of shallow reef. Here, cleaner wrasse swim in between the manta gills and along their skin to feast on attached parasites and dead tissue. A beautiful example of symbiosis in action.A third behavior you may come across whilst snorkeling is manta courtship, during which, manta rays dance their own version of a conga line, otherwise known as a manta train. At the front of the train is a female manta ray, weaving, gliding, and diving through the water. Behind her follow multiple male suitors, with trains sometimes reaching up to 30 individuals in length. The female is testing the stamina and determination of the males as they follow her through a ritual that can last for hours. The final persisting male earns the opportunity to mate with her.
Whether feeding, cleaning, or courting, these shallow water behaviors are ideal for snorkelers as the rays tend to aggregate predictably in specific locations to do so. This means we can visit known cleaning and feeding stations, giving us a great chance of repeat shallow encounters.
Our Top Three Manta Snorkeling Destinations
With an estimated population of around 6,000 resident reef manta rays, the Maldives is undoubtedly one of the world’s best destinations for manta snorkeling.
When to go?
While mantas can be seen year-round, the peak season runs from May to November. During the southwest monsoon, winds and currents concentrate plankton in the bays and lagoons of the atolls, drawing large numbers of manta rays together to feed.
What behavior will I see?
Feeding is the main event. You’ll often witness mantas performing their signature barrel rolls—graceful underwater somersaults with mouths wide open as they filter plankton from the water.
Beyond feeding, the Maldives is home to many cleaning stations and during peak season, large aggregations can also lead to courtship displays so lucky snorkelers may encounter manta trains!
Which species will I encounter?
The Maldives is best known for its population of reef manta rays but during peak season there’s also a chance of encountering the larger Oceanic mantas.
When talking about manta ray encounters, we have to mention Palau. Manta snorkeling in Palau comes with crystal-clear water, thriving reefs, and many other species of rays, sharks, and reef fish.
When to go?
Although manta rays can be seen reliably in Palau all year round, the peak season is generally considered to be from December to March. With calm waters and excellent visibility, you’ll be in manta heaven!
What behavior will I see?
Palau is a fantastic place to see mantas while snorkeling because they are often found feeding on the surface at certain tides, which bring in all the plankton. They can be found cleaning as well, but the big manta show happens when they feed!
What species will I encounter?
You will mostly encounter reef manta rays, which can be distinguished by their smaller size, reaching approximately a 4.5-metre wingspan at their largest. They also have Y-shaped white patches on their backs and distinctive spot patterns on their undersides.
Indonesia: Raja Ampat and Komodo National Park
I couldn’t write this blog without mentioning Indonesia. Known for its strong currents that bring nutrient-rich water to the surface, manta rays can be seen throughout the archipelago all year round. Specifically, when snorkeling in Raja Ampat and Komodo, you are highly likely to bump into a manta ray or two.
When to go?
There isn’t a specific manta ray season in Indonesia, as manta rays tend to be resident in these areas and can be seen year-round.
What behavior will I see?
Home to thousands of resident manta rays, Indonesia is a fantastic place to observe a wide range of manta behaviours. There are, of course, many cleaning stations where manta rays aggregate, but chance encounters out in the blue while snorkeling are also common.
When snorkeling in Indonesia, always keep an eye on the blue water, as a manta can glide by at any moment. When the water is rich with plankton, you can often come across multiple mantas feeding together, as well as courting trains.
If you are really lucky and keep an eye on the horizon while cruising through the island passages, you may even witness a manta ray breaching. This is quite rare, and scientists are still not entirely certain why they do it, but it is a spectacular sight to see a five-metre manta launch itself from the water and crash back onto the surface.
What species will I encounter?
Indonesia is home to resident reef manta rays; however, it is also one of the best places in the world to see oceanic manta rays.
Oceanic mantas, with wingspans of up to 7 metres, use the strong currents to glide effortlessly through the water and can sometimes be seen at cleaning stations alongside reef mantas. Keep an eye out for a larger ray with a more T-shaped white marking across its back.
How to Behave While Snorkeling with Mantas
My favourite thing about snorkeling with manta rays is that they tend to come back! Unlike many megafauna encounters, where the animal swims past in a flash, mantas often circle back around. If you see a manta ray glide past while snorkeling, be patient—it will most likely return. This means encounters can sometimes last for hours.
With this in mind, here is how to have a successful manta ray interaction:
- Enter the water calmly, making as little splash and noise as possible (think graceful, like a manta ray!).
- Even if you see the manta swimming away, do not chase after it. Instead, calmly swim in its direction or remain relatively still at the surface, allowing it to acclimatise to your presence.
- If the manta is cleaning or feeding, it will often circle back after a short while.
- Remain at the surface at the beginning of the encounter so you do not appear threatening.
- If the mantas seem relaxed and begin swimming towards you or checking you out, feel free to dive down, always keeping a respectful distance and never touching the animals.
- Chasing manta rays will almost always result in the animal swimming away.
Manta rays are intelligent, sentient animals. If they are feeling curious, they will often approach you. Lucky snorkelers are sometimes treated to incredibly close encounters as mantas glide gracefully past.
Finally, Are Manta Rays Dangerous?
No!
Manta rays are often confused with stingrays, which are also generally placid animals and only use their barb in self-defence when absolutely necessary. Manta rays do not have venom, nor do they possess a barb on their tail. Their primary defence strategy is simply to swim away. Although they can appear intimidating due to their enormous size, manta rays are among the most peaceful animals you can encounter in the ocean. Swimming with mantas is an unforgettable experience that will leave you feeling both blissful and in awe.
