Swimming with manta rays is one of the most exhilarating wildlife encounters in the ocean — and one of the most popular experiences in Kona, Hawaii.
These graceful giants glide through the water with wingspans that can reach over 17 feet and live for an incredibly long time. Swimming with these creatures offers snorkelers a front-row seat to nature’s underwater ballet. But with their size and proximity, many first-time swimmers understandably wonder: Is swimming with manta rays safe?
In this blog post, we’ll answer that question in depth. You’ll learn all about manta ray behavior, the safety protocols tour operators follow, what to expect during a night snorkel, and how to ensure your encounter is as safe and respectful as it is unforgettable.
Swimming With Manta Rays Is Perfectly Safe!
Is swimming with manta rays safe? Absolutely. It’s one of the safest and most awe-inspiring wildlife encounters you can have in the ocean.
With the right tour operator, essential water comfort, and respect for marine life, you can enjoy this magical experience with peace of mind. Manta rays are not only safe to swim with, but they also offer a rare chance to witness the harmony of nature up close.
Some Fun Facts About Manta Rays
You can read our in-depth guide to fascinating manta ray facts here, or read a quick run down to learn more about them!
Species
Manta rays are related to stingrays but belong to the genus Mobula. There are two main species: the reef manta ray (Manta alfredi) and the enormous giant manta ray (Manta birostris). Aside from size, they also differ slightly in the color and texture of the skin.
Appearance, Size & Speed
Manta rays have dark backs and white undersides, often with unique black spots. Reef mantas can grow up to 18 feet long!
Teeth
Despite being cartilaginous like sharks, manta rays are harmless. They have rows of small, blunt teeth in their lower jaws—about 300 rows—but they pose no threat to humans.
Defense
Manta rays defend themselves with their massive size, agility, and speed. Their wide wingspan and swift swimming discourage most predators, including sharks and orcas.
Diet
Manta rays are filter feeders. They swim with their mouths open, filtering zooplankton, such as krill, shrimp, and small crabs. Occasionally, they consume small fish, but plankton makes up most of their diet. Weekly, they eat around 12% of their body weight.
Are Manta Rays Dangerous?
No, manta rays are not dangerous to humans. Unlike stingrays, manta rays do not have barbs or stingers on their tails. They are filter feeders, meaning they eat plankton — not fish, not people, and certainly not snorkelers.
Manta rays are renowned for their gentle and curious nature. They often approach divers and snorkelers without fear, sometimes even performing acrobatic flips and barrel rolls right in front of you.
Manta Ray Behavior and Temperament
Manta rays are brilliant and social animals. Studies suggest they have the most significant brain-to-body ratio of any fish, and they exhibit behaviors that indicate problem-solving abilities and curiosity.
Rather than flee from humans, manta rays in Kona have become accustomed to snorkelers and divers. The bright lights used during nighttime snorkel tours attract plankton, which in turn attract mantas for an easy meal. The rays often swim within feet of guests — not out of aggression but because they are focused on feeding and have learned to associate lights with food.
Their peaceful, slow, and fluid movements contribute to the overall sense of serenity during the experience. There’s a reason people describe swimming with mantas as “otherworldly” or “spiritual.”
Kona’s Unique Manta Ray Experience
Kailua-Kona is one of the best — if not the best — places in the world to swim with manta rays. Unlike other destinations, Kona’s coastline has a resident population of reef manta rays that feed near the shore nearly every night.
KONASTYLE’s guided tours offer safe, ethical, and exciting night snorkels where guests float above the ocean’s surface and watch the rays glide underneath them.
Safety Measures Taken By Manta Ray Tour Operators
Reputable tour companies like KONASTYLE prioritize both guest safety and manta rays protection. Here’s how:
- Briefings and Education: Before you get in the water, you’ll receive a full safety briefing, including how to behave around manta rays, how to use your snorkel gear, and what to do in case of discomfort or fatigue.
- Flotation Devices: Guests float on the surface using pool noodles or a specially designed raft with built-in handles and lights.
- Professional Guides: USCG licensed captains and certified crew members stay in the water with you at all times, monitoring conditions, helping with equipment, and ensuring everyone is safe and relaxed.
- Calm Conditions: Tours are only conducted in suitable weather and ocean conditions. If visibility or current is poor, your tour may be rescheduled for safety.
- No Diving Required: These are snorkel tours — not scuba dives — so you’re not expected to submerge or swim after the mantas. You simply float and watch.
What To Expect on a Manta Ray Snorkel Tour
Here’s a step-by-step overview of what your experience might look like:
- Check-In and Briefing: You’ll meet your guide and learn about manta rays, safety, and equipment.
- Boat Ride: A short, scenic ride takes you to one of Kona’s manta hot spots.
- Entering the Water: Wearing a wetsuit top or flotation device, you’ll slide into the water and hold onto the floating raft.
- Observation: Underwater lights attract plankton. Soon, manta rays begin to arrive — swimming loops and barrel rolls just inches away.
- Return and Recap: After 45 minutes in the water, you’ll return to the boat, dry off, and head back to the dock — often with unforgettable stories to share.
Tips for Staying Safe During Your Swim
Even though swimming with manta rays is low-risk, here are some ways to make your experience even safer:
- Follow Your Guide’s Instructions: Listen carefully and stay with the group.
- Don’t Touch the Mantas: Touching can remove the protective mucus on their skin, causing harm. Respect their space.
- Stay Calm and Still: The more still you are, the closer they’ll come. Splashing or chasing scares them away.
- Use Reef-Safe Sunscreen: Protect Hawaii’s coral reefs and ocean life by wearing biodegradable, reef-friendly sunscreen.
- Wear a Rash Guard or Wetsuit Top: These help keep you warm and provide sun protection during boat rides.
Conservation, Respect, and Legal Guidelines
Hawaii has strict regulations to protect manta rays. Here’s what you should know:
- Manta rays are a protected species in Hawaiian waters. It is illegal to hunt, capture, or harm them.
- Touching or riding manta rays is not only harmful, but it’s also illegal.
- Tour operators must have the proper commercial permits and follow necessary safety and environmental guidelines.FAQ: Swimming With Manta Rays
Is it safe for kids to swim with manta rays?
Yes, most manta ray snorkel tours are open to children 7 years and older who are comfortable snorkeling in the ocean at night. Parental supervision is required.
Are there sharks in the area where the manta rays are found?
Manta ray viewing sites are not typical shark zones. Sharks prefer deeper waters and are rarely seen during night snorkels.
Do manta rays ever attack people?
No. Manta rays are gentle, filter-feeding creatures. They don’t have barbed tails, or aggressive tendencies.
What if I’m not a good swimmer?
If you’re not a good swimmer, a snorkeling tour is probably not your best option for seeing manta rays. Snorkeling does require a base level of swimming skills and is not advised for weak or non-swimmers.
Will I get seasick?
Some people do experience mild seasickness. We recommend taking motion sickness medication before boarding if you’re prone to it.
Join us at KONASTYLE to snorkel with manta rays on the Big Island!
If you’re visiting the Big Island, don’t miss your chance to join KONASTYLE for a manta ray snorkel tour. It’s not just an adventure — it’s a memory that will last a lifetime.
Ready to experience the magic? Book your Kona manta ray night snorkel with KONASTYLE today!
