Manta Ray Snorkel in Kailua-Kona with Hot Cocoa

The best part of this Kailua-Kona outing happens below a floating light platform, where manta rays glide through the dark water and roll beneath you to feed on plankton. Some can reach 14 feet across, yet these filter feeders are gentle and harmless.

I like the calm setup for first-time snorkelers, and I like the small-group feel, with lifeguard-certified guides helping you get comfortable. The main catch is simple: this is the Pacific Ocean, not a swimming pool. Cold water, boat motion, and seasickness can affect your evening, and manta sightings are not guaranteed.

Key points to know

• Manta Ray Heaven uses underwater lights: The lights draw plankton, which brings the rays close to the viewing platform.
• Up to 45 minutes in the water: You float face down while guides help with masks, flotation gear, and positioning.
• The crew takes safety seriously: Guides such as Amy, Mitch, Bryce, Diego, and Tamae have been praised for clear instructions and close attention.
• Sunset and moonlight departures differ: The early trip includes sunset timing, while the later departure gives you a night ride under the moon and stars.
• Warm drinks come afterward: Hot cocoa, tea, snacks, and bottled water await you on the return boat.
• Prepare for the cold: Wetsuits cost $10 for adults and $5 for children, and several people were glad they rented one.

From Honokohau Harbor to the Manta Ray Site

Your evening begins at Iruka Hawaii Dolphin and Manta Tours, at Slip A17 in Honokohau Harbor, about five minutes north of Kailua-Kona. Parking is free, which makes this a fairly easy outing to fit into a Big Island schedule.

The boat is KIBOU, a speedboat used for the short ride along the Kona coast. The total activity lasts about two hours, but the exact departure time depends on the trip you choose. Select the early departure for the sunset outing, or choose the later time for the moonlight version.

I like the way the timing gives you two different moods. The sunset trip lets you watch the coast change color before entering the water. The later departure puts more focus on the night sky, the lights in the water, and the quiet ride back to the harbor.

Before leaving, you complete a waiver and receive a safety briefing. The crew also explains manta ray behavior and the ocean setting, so you understand why the lights work and how to behave around the animals.

Why the Lights Bring Manta Rays Close

The snorkel site is called Manta Ray Heaven, a boat-access-only spot where underwater lights, nicknamed campfires, shine upward from the water. The lights attract plankton, and plankton attracts manta rays.

This is the key to the whole outing. You are not chasing rays or trying to find them across a large reef. You float above a lighted area while the rays come below to feed. That gives you a steady viewing position and helps keep the animals in control of the encounter.

The manta rays are wild, so no operator can promise a sighting. If none appear, Iruka Hawaii offers a place on the next available tour at no extra cost. That policy does not remove all uncertainty, but it makes the $125 price feel more reasonable than it would on a trip with no follow-up option.

When the conditions cooperate, several rays may pass below at once. One person described seeing seven together, while another counted about ten during the snorkel. Those numbers can change from night to night, so treat them as possible highlights, not a guarantee.

Floating Above the Rays for Up to 45 Minutes

At the site, you put on your snorkel mask and enter the water near the floating light platform. The basic technique is easy: hold onto the platform, keep your face in the water, and watch the manta rays pass below.

You do not need advanced swimming skills. The staff can help you get used to the mask, and flotation support is available. One person specifically appreciated having the option of a snorkel vest and a pool noodle to keep the legs afloat.

That makes this a good first ocean snorkel for many people. You can focus on breathing through the mask instead of trying to swim around. The guides remain nearby, help adjust equipment, and explain what is happening as the rays approach.

The animals may glide close to the surface, then turn into graceful barrel rolls as they feed. Their broad wings move slowly, and their pale undersides catch the light. The effect is peaceful rather than frantic, but the open water still has motion. One experienced swimmer described the water as having texture and found the floating position close to the limit of comfort.

You must also listen to the crew’s instructions about animal contact and positioning. The guides care about keeping the encounter respectful, and people who ignore directions can create problems for themselves and for the rays. Do not reach for the animals, even if one passes very close.

What the Water Feels Like After Sunset

Cold is the most common practical concern. You may be comfortable in swimwear on the boat and then wish you had more protection once you are floating in the night water.

Wetsuit rental costs $10 for adults and $5 for children. If you get cold easily, I would budget for one. Bring a towel and a sweatshirt or other warm layer for the ride back. Several people who skipped the wetsuit wished they had rented it, while the return boat ride itself was described as less cold than expected.

The time in the water can last up to 45 minutes. That is plenty of time for a memorable sighting, but it is also a long time to remain still in cool water. You can ask the crew about the best flotation and wetsuit choices before entering.

Motion sickness is another real issue. The speedboat ride and the floating position can both feel rough if you are sensitive to movement. The operator recommends taking seasickness medicine about an hour before departure, and you need to supply your own.

If you are prone to motion sickness, do not wait until the boat starts moving. A medicine plan is one of the most useful things you can arrange before reaching the harbor.

The Crew Makes the Difference

The crew is a major part of this experience because the best manta viewing depends on feeling calm and properly positioned. Names praised for clear explanations, humor, and attentive support include Amy, Mitch, Tamae, Bryce, Diego, Trevor, Lena, Madi, Scott, and Travis. The exact team can vary by departure.

Several guides have also helped people who felt nervous about open water. They explained each step, checked that masks and flotation gear were set correctly, and stayed attentive during the snorkel. That matters if you are bringing children, grandparents, or anyone who feels anxious in the ocean.

Families with young children have had especially good support. The outing is intended for all ages, and a three-year-old and six-year-old were able to see the manta rays with help from the crew. Still, the ocean setting means adults must judge their children’s comfort and ability carefully.

The boat has bathrooms, which is a useful comfort on a two-hour outing. English is the tour language. Light snacks, bottled water, hot cocoa, and tea are included, while you may bring additional food and drinks if needed.

You may bring alcohol, but only after snorkeling. Glass containers are not allowed.

Hot Cocoa, Snacks, and the Ride Home

After the water portion, you climb back aboard KIBOU and warm up during the ride to Honokohau Harbor. This is when the hot cocoa and tea are served, along with light snacks and bottled water.

The warm drink is a small detail, but it fits the evening well. After floating in the dark, you want something hot in your hands. If you are booking this trip partly for the cocoa, keep expectations modest. One person felt the serving was closer to a small cup than a full mug and wanted more.

The boat ride back can be one of the nicest parts of the night. The sunset departure returns under the stars, while the later trip gives you a moonlit ride. Music may be part of the atmosphere, and the crew has been praised for keeping the journey relaxed and fun.

You should bring a towel even if you plan to skip the wetsuit. A sweatshirt is also useful, especially for children and anyone who gets chilled easily.

Is $125 a Fair Price?

At $125 per person, this is not a casual, low-cost swim. The price includes the boat ride, snorkel equipment, in-water guides, a floating viewing platform, safety instruction, manta education, drinks, snacks, and use of the onboard bathroom.

The value comes from the specialized setup. You are not simply renting a mask and hoping to spot wildlife from shore. The boat reaches a site designed for manta viewing, and the lights create a reliable feeding area without handling or baiting the animals.

The small-group format also matters. Individual attention is useful when a mask leaks, a child feels uneasy, or you need help getting into the right position. The experience is less attractive if you are looking for a cheap beach snorkel, but it makes sense for a special Big Island evening.

Add $10 for an adult wetsuit or $5 for a child’s wetsuit if you are likely to feel cold. Sunset transportation from your accommodation costs extra, while the harbor has free parking. Tips are optional but appreciated.

You can cancel up to 24 hours ahead for a full refund, and a reserve-now, pay-later option is available. Those policies help if your Big Island plans are still shifting.

Who Will Enjoy This Most?

I would recommend this trip to you if you want a close wildlife encounter without needing strong snorkeling skills. It suits families, first-time snorkelers, and people who prefer a guided setup with clear instructions.

It is also a good choice for anyone who values the atmosphere around the main event. The coastal boat ride, sunset or moonlight timing, hot drinks, and quiet return make the evening feel like more than a short swim.

You should think twice if you dislike open water, become seasick easily, or get cold quickly. Medication, a wetsuit, and warm clothing can help, but they cannot turn the Pacific into a calm indoor pool.

The information provided for this activity is mixed on mobility access. It describes the tour as wheelchair accessible but also lists it as unsuitable for wheelchair users and people with mobility impairments. Contact the operator directly before booking if this applies to anyone in your party.

What to Bring and How to Prepare

Pack swimwear and a towel. Add a sweatshirt or warm layer for the boat ride home, and consider renting the wetsuit before departure if you are sensitive to cold.

Take seasickness medicine about one hour before the tour if you normally need it. Do not bring glass, and save any alcohol until after you leave the water.

Listen closely during the briefing. The crew’s instructions cover safety, equipment, flotation, and respectful behavior around the manta rays. You will get more from the experience if you are relaxed, stay in position, and let the rays approach on their own.

You may not be able to take your own photos easily because you need to hold onto the platform. Crew members may capture photos or videos and share them afterward, including by AirDrop, but this should not be treated as guaranteed. Your best memory may simply be the sight of a wide manta ray passing through the light below your face.

Should You Book the Manta Ray Snorkel?

Book it if seeing manta rays is high on your Big Island list and you want a guided, family-friendly night outing with strong safety support. The combination of the light platform, up to 45 minutes in the water, and the warm drink afterward gives the $125 price real value.

I would choose the sunset departure for coastal color and the moonlight departure for a darker, more atmospheric ride. Rent a wetsuit if you get cold, take motion sickness medicine if needed, and accept that wildlife sightings can never be promised.

Skip it if open water makes you very uncomfortable or if a mobility limitation has not been cleared with the operator. For everyone else, this is one of Kailua-Kona’s most distinctive evening activities, with the best moments coming when the lights catch a manta ray rolling silently just below you.

FAQ

Where does the manta ray snorkel meet?

The meeting point is Iruka Hawaii Dolphin and Manta Tours at Slip A17 in Honokohau Harbor, about five minutes north of Kailua-Kona. Parking is free.

How long does the activity last?

The full experience lasts about two hours. You can spend up to 45 minutes in the water watching the manta rays.

What is the price?

The listed price is $125 per person. Wetsuit rental costs $10 for adults and $5 for children.

Are wetsuits included?

No. Wetsuits are available to rent for an additional fee. You should consider one if you get cold easily.

Can first-time snorkelers join?

Yes. The outing is designed for all skill levels, and the crew gives instruction on using the mask and becoming comfortable in the water. Flotation support is available.

Are manta ray sightings guaranteed?

No. Manta rays are wild animals, so sightings cannot be guaranteed. If no manta rays are seen, Iruka Hawaii offers a place on the next available tour at no extra cost.

Should I take seasickness medicine?

If you are prone to motion sickness, the operator recommends taking medication about one hour before the tour. The medication is not provided.

What should I bring?

Bring swimwear and a towel. A warm sweatshirt or similar layer is also useful for the ride back. Glass objects are not allowed.

Are sunset and moonlight tours available?

Yes. Choose the early departure for the sunset outing. The later departure provides a moonlight experience. Transportation for the sunset tour may cost extra, so contact the operator for details.