Reviewed · SNORKELING

Big Island Manta Ray Night Snorkel

★ 5.0 · 5,656 reviews 2 hours 30 minutes (approx.) From $84 Operated by Hang Loose Boat Tours · Bookable on Viator
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Manta rays under you after dark. This Big Island Manta Ray Night Snorkel puts you in the water in Kona after a sunset cruise, with a crew that keeps the vibe calm and fun. I like the mix of hands-on guidance and the promise of up-close viewing.

The one drawback to plan for is that this is not a casual beginner float. You need prior swimming and snorkeling comfort, and on rougher nights the boat ride can be rough on your stomach.

Key Points I’d Prioritize Before You Go

Big Island Manta Ray Night Snorkel - Key Points I’d Prioritize Before You Go

  • Expert-led night snorkel setup so you know what to do before the water goes dark
  • Sunset in Kona from the boat before you suit up and enter the water
  • Included snorkel gear, flotation, and a jacket wetsuit top to keep things simple
  • Light snacks and bottled water on board so you’re not hungry during the wait
  • Free return if you do not see manta rays (worth it if your timing is tight)
  • Max 48 people which helps you feel like you’re part of one group, not a crowd

How The Kona Night Snorkel Runs From Keauhou Bay

Big Island Manta Ray Night Snorkel - How The Kona Night Snorkel Runs From Keauhou Bay
This tour starts at Hang Loose Boat Tours at 74-381 Kealakehe Pkwy, Kailua-Kona. You’ll make your own way to Keauhou Bay Harbor, check in, and meet your guide. The whole experience runs about 2 hours 30 minutes.

Once you’re aboard, expect a short cruise out to the snorkeling area. The day-to-night switch is part of the experience, too, since you watch a beautiful Kona sunset before you gear up and enter the water. Then it’s back to the harbor at the end.

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Crew, Commentary, And Safety For Black-Water Snorkeling

Big Island Manta Ray Night Snorkel - Crew, Commentary, And Safety For Black-Water Snorkeling
Night snorkeling sounds spooky until someone tells you exactly what to do. That’s the value here. You get live commentary on board and a professional guide, plus hands-on help as you prepare to get into the water.

This tour is very clear about expectations: you must have previous swimming and snorkeling experience or you won’t be able to get in the water. You also need to be comfortable using floatation devices if you want them. And yes, you should be ready to climb a short ladder as part of getting on and off the boat.

One more reason people feel safe is the way support is handled around the water. On manta nights, the staff focus on helping snorkelers manage holding positions and moving back safely when needed. If you’re nervous, that matters, because black water is not the same as daytime snorkeling.

What You’ll Actually See When the Mantas Show Up

The payoff is the manta ray viewing itself. When conditions are good, you’ll snorkel close enough to see these gentle giants clearly, often with them circling beneath or near your viewing position.

Several experiences are described as truly close, including mantas that swim close to snorkelers and even appear from different angles. People also talk about watching multiple rays in view at once, which turns it from a quick sighting into an ongoing show. And the experience is unique to Hawaii, since you’re essentially watching manta behavior during their active feeding or movement patterns in the area at night.

A key detail that keeps this from feeling like a coin flip is the free return trip if you do not spot manta rays. That’s a big deal for night tours, because weather and visibility can affect sightings. It also means you can treat the first try as a full experience, not a stressful gamble.

Gear Included, Plus What To Bring So You Don’t Freeze

Big Island Manta Ray Night Snorkel - Gear Included, Plus What To Bring So You Don’t Freeze
This is one of the easier tours to pack for because snorkeling gear is included. You’ll also get a jacket-style wetsuit top and a floatation device for the snorkeling option.

What’s not included is anything you might need to stay comfortable after you get back on deck. I strongly recommend you plan for the “wet to warm” moment. Bring:

  • A towel
  • Clothes for change
  • A sweatshirt or light jacket for after
  • Anything you need to stay warm while you wait on the return ride

You can also rent a GoPro only if available, and it requires you to call to reserve. I’d only count on that if you’ve confirmed ahead of time.

Light snacks and bottled water are included on board. That matters because you’ll be out for a while, and you don’t want to start the water portion already hungry.

The Boat Ride Reality Check: Seasickness Can Be the Main Issue

The manta rays are worth it, but your comfort on the boat can be the make-or-break factor. The tour goes out at night, and on some nights you may experience choppy or rough water. A few people reported significant seasickness during the cruise.

If you know you’re prone to motion sickness, take your prevention plan seriously. The most practical approach is to follow whatever seasickness medication strategy works for you, taken ahead of time as directed on the label or by a professional. And if you tend to get sick, don’t assume night snorkeling automatically equals smooth sailing.

Also, remember that the water portion includes holding on while you float at a viewing platform. Current and body position can be a factor, and your ability to stay steady is part of the safety process.

Who This Snorkel Tour Is Perfect For (And Who Should Choose Another Activity)

This tour has a clear sweet spot: people who can comfortably snorkel and are at ease in open water at night. The operator requires previous swimming and snorkeling experience, and they also want you to be comfortable using floatation if needed.

It also helps if you’re in decent shape for short physical tasks. You should be able to handle the ladder and manage the water holding position safely. The tour recommends moderate physical fitness.

Age and health notes are important:

  • Minimum age is 2 years old
  • Maximum age is 70 years old unless approved
  • Not recommended for back or neck problems or injuries within the last 3 years
  • Not recommended for pregnant travelers in advanced pregnancy

There’s also a helpful option for non-swimmers: the Ride Along option. If you want the experience without getting in the water, ask about that option and confirm what it includes when you book.

Value in Real Terms: Is $84.60 a Good Deal?

At $84.60 per person, you’re paying for a guided night outing that includes more than just “a boat ride.” You get:

  • A professional guide and on-board live commentary
  • Snorkeling gear, jacket wetsuit top, and floatation
  • Light snacks and bottled water
  • A free return if mantas do not show

That combination is what makes the price feel reasonable. The big value lever is not the manta ray guarantee, because no one controls wildlife. The value lever is that the company offers a second night if you miss the main event.

One booking tip I’d treat as essential: if you’re booking through a third-party platform, double-check what your ticket covers. One experience included being informed the booking was for observation only unless an extra upgrade was purchased. I can’t say that will happen to everyone, but I can say it’s smart to confirm you’re actually booked for the full snorkeling option.

A Few Small Moves That Improve Your Odds of Enjoying It

Big Island Manta Ray Night Snorkel - A Few Small Moves That Improve Your Odds of Enjoying It
Night snorkeling is mostly about readiness. If you want manta viewing to feel like awe instead of stress, do these:

1) Arrive with warm layers and a plan

You will want dry clothes and a warm top for after, and a towel makes life much easier.

2) Do not show up without comfort in the water

The requirement is real, and the safety process is built around people who can handle floating and holding positions.

3) Bring only what you need

The less you manage while you’re getting suited up and settled, the smoother the whole night feels.

4) If you’re anxious, tell the crew early

Some people were nervous about black-water entry, and the support approach made the difference. A calm guide can change your entire experience.

Should You Book This Hang Loose Boat Tours Manta Ray Night Snorkel?

I’d book this if you meet the basics: you can swim and snorkel, you’re okay with night water, and you can climb a short ladder. I’d also book it if the idea of seeing mantas close up is a real priority, not just a “nice if it happens.”

You should think twice if you have a strong history of seasickness or you know rough water hits you hard. In those cases, even with a great crew and a great manta encounter, the boat ride can spoil the night.

If you do book, treat it like a full event. Bring a towel and warm layers, take seasickness prevention seriously if you need it, and confirm you’re booked for snorkeling if that’s what you want.

FAQ

Where do I meet for the Big Island Manta Ray Night Snorkel?

You meet at Hang Loose Boat Tours, 74-381 Kealakehe Pkwy, Kailua-Kona, HI 96740, at Keauhou Bay Harbor. The tour ends back at the meeting point.

How long is the tour?

The tour lasts about 2 hours 30 minutes.

What snorkel gear is included?

For the snorkeling option, the tour includes snorkeling gear, a jacket-style wetsuit top, and floatation devices. Bottled water and light snacks are also included.

Do I have to have previous snorkeling experience?

Yes. The tour requires previous swimming and snorkeling experience and comfort in the water. If you are not a swimmer, there is a Ride Along option.

What happens if I do not see manta rays?

If you do not spot manta rays on the excursion, you can book again for another night free of charge.

What are the age limits and fitness expectations?

The minimum age is 2, and the maximum age is 70 unless approved by the supplier. You should have moderate physical fitness, be in good health, and be able to climb a short ladder.

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