Kona: Night Manta Ray Snorkel Small Group & Light Board

Summary

Float above glowing manta rays in Kona’s quiet night waters

You’ll slip into Kona’s warm night water for a short swim above glowing manta rays—just minutes from Keauhou Harbor with a small group and pro guides beside you. Hold onto custom light boards as mantas sweep inches below, drawn by swirling plankton and blue glow. Expect laughter, salt air, maybe a shiver or two—and that wild moment when you realize how close you are.

What’s the experience like?

We were barely out of Keauhou Harbor before the captain cut the engine — honestly, I’d just finished adjusting my mask. The boat ride was so short I almost laughed. Our guide, Kaleo, handed out snorkels and did this little “shaka” gesture that made me feel like maybe I could pull this off, nerves and all. The air smelled faintly salty-sweet and I could hear someone cracking a joke about sea monsters (not helpful, but funny). It was dark, but the harbor lights made everything look kind of soft.

I slid into the water and grabbed onto the light board — it hummed quietly under my hands, glowing blue beneath us. The first few minutes were just plankton swirling up from nowhere, like tiny stars. Then suddenly a manta ray swept in below me. It moved so close I could see the weird little spots on its back. Kaleo pointed with his flashlight and whispered something about how they come for the plankton buffet every night. I tried to say “mahalo” but probably sounded like I was choking on seawater — he grinned anyway.

The whole thing lasted maybe half an hour? Time got weird out there. There weren’t many other boats around since we went later at night (I heard that’s when you get more mantas). At one point I just floated quietly and listened to everyone’s muffled laughs through their snorkels. When it ended, I climbed back up shivering a bit but couldn’t stop smiling. Still think about that feeling — being right above those gentle giants in the dark, knowing you’re just a visitor here.

Step-by-step itinerary

Day 1 — Manta Ray Night Snorkel Experience

• Arrive at Keauhou Harbor
• Board boat for 3-minute ride
• Enter water and hold light board
• Snorkel with manta rays 20-40 minutes
• Return to harbor

Top questions

How long is the boat ride to the manta ray site?

The boat ride from Keauhou Harbor is only about 3 minutes.

How many people are on each manta ray night snorkel tour?

Each group is limited to 17 guests or fewer for a small group experience.

Is snorkeling gear provided on the tour?

Yes, free masks and snorkels are provided; wetsuits and lifejackets can be rented if needed.

What happens if we don’t see any manta rays?

If you don’t see manta rays during your tour, you can come again for free based on availability.

How long do we spend in the water with the mantas?

You’ll spend approximately 20 to 40 minutes in the water depending on ocean conditions.

Are guides present during the snorkel?

Yes, every tour includes a licensed captain, swim guide, and certified lifeguard for safety.

Do I need previous snorkeling experience?

You should have basic swimming skills and be comfortable in open ocean conditions; previous snorkeling experience is required.

Is transportation included to Keauhou Harbor?

No hotel pickup is included; guests meet at Keauhou Harbor but public transportation options are nearby.

What’s included

Your evening includes a super short boat ride from Keauhou Harbor with a licensed captain at the helm, plus all your snorkel gear—mask and snorkel are provided free (bring your own if you want). You’ll have an in-water guide and certified lifeguard looking out for everyone while you float above the mantas using powerful custom-built light boards that attract them right beneath you.