Manta Ray Small Group vs Boat on the Big Island: Which Night Snorkel Fits Your Trip

Quick Verdict

On the Big Island, choosing between a small-group manta ray night snorkel and a standard boat comes down to three things the listings state differently: group size, whether a wetsuit is included, and what happens if no mantas show up.

• I would pick Manta Magic: Small-Group Manta Ray Night Snorkel in Kailua Kona for travellers who want a short small-group outing from Keauhou Harbour to Manta Village.
• I would pick Kona Manta Ray Night Snorkel- Small Group - Wetsuit Included for families and weaker swimmers who want wetsuits and snorkel gear included in the booking.
• I would pick Big Island Manta Ray Night Snorkel for travellers who care most about a no-sighting guarantee that covers a repeat trip.

Skip all three if your trip only works with a promised sighting.

Small Group or Standard Boat: What Each Listing Books

They differ on departure harbour, group size, wetsuits and no-sighting terms.

Here is the format the bank describes for the Kona coast: "Kona manta ray night snorkel boats leave from west-side harbors such as Keauhou Bay and Honokōhau Harbor around sunset, and the snorkelers float at the surface holding a lit board that draws plankton." For background on how these nights work, I point readers to the Hawaii Guide manta ray night snorkel page, and our own manta ray snorkel guide covers the wider picture.

Manta Magic: Small-Group Manta Ray Night Snorkel in Kailua Kona

This is the only one of the three that names both its harbour and its site. The listing says it leaves from Keauhou Harbour, makes a quick ride out to Manta Village, and provides a lightboard with flotation.

What the card leaves open is as important. It does not say whether wetsuits and gear are included, and it does not say what happens on a night without mantas. My advice: confirm both points with the operator before you book. Skip this listing if you need a wetsuit confirmed in writing before you commit.

Manta Magic: Small-Group Manta Ray Night Snorkel in Kailua Kona

★★★★★ 4.8 (1183 reviews) on Viator · 1 hour

From $145 · Price checked: Oct 2026

Best for: Travellers wanting a short manta ray snorkel with a maximum of 12 passengers and a five-minute boat ride.

Not for: Those wanting a sunset sail or longer evening, as this is a one-hour trip focused on the snorkel.

A one-hour small-group manta ray night snorkel from Keauhou Harbour, with a five-minute ride to Manta Village and a lightboard with flotation. Confirm whether wetsuits and gear are included, and the policy if no mantas appear.

Check availability

External booking on Viator · pricing and cancellations handled by Viator

Big Island Manta Ray Night Snorkel: The Guarantee Case

On paper this listing is the closest to a standard boat. It does not describe itself as small group, and the card gives no group size. Its selling point is the no-sighting promise: the listing says you get a free next trip if no mantas are seen.

The guarantee only helps if you can use it. The card does not state the departure harbour, group size, or whether gear and wetsuits are included, and it does not explain how the free trip is redeemed. I would ask the operator directly how the repeat trip is booked and whether it has to fall within your stay. Skip this listing if your manta night is your last night on the Big Island, because a free repeat trip has no value once you have flown home.

Big Island Manta Ray Night Snorkel

★★★★★ 4.8 (6329 reviews) on Viator · 2 hours 30 minutes

From $94 · Price checked: Oct 2026

Best for: Travellers wanting a manta ray night snorkel backed by a sighting guarantee that covers a repeat trip.

Not for: Anyone wanting detail before booking, as the listing does not state group size, gear, wetsuits or departure point.

A two and a half hour manta ray night snorkel, with a free next trip if no mantas are seen. Confirm the departure harbour, group size, whether gear and wetsuits are included and how the guarantee is redeemed.

Check availability

External booking on Viator · pricing and cancellations handled by Viator

Kona Manta Ray Night Snorkel- Small Group - Wetsuit Included

This listing answers the gear question up front. The card says snorkel gear and wetsuits are included and that prescription masks are available on request. I steer families and less confident swimmers to this listing first, and our Big Island with kids page covers more of that planning.

It is vague on other points. The listing does not state its departure harbour, so check it, especially if your hotel is far from the Kona coast. Skip this listing if you need a stated no-sighting policy, because this card does not mention one.

Kona Manta Ray Night Snorkel- Small Group - Wetsuit Included

★★★★★ 4.8 (678 reviews) on Viator · 2 hours

From $123 · Price checked: Oct 2026

Best for: Families and weaker swimmers wanting a small-group manta ray night snorkel with wetsuits and gear included.

Not for: Travellers wanting a sunset sail or drinks on board, as the listing mentions only the snorkel, gear and wetsuits.

A two-hour small-group manta ray night snorkel with snorkel gear and wetsuits included, and prescription masks available on request. Confirm the departure harbour, group size and how non-swimmers take part.

Check availability

External booking on Viator · pricing and cancellations handled by Viator

Harbour, Site and the Evening Itself

After the gear and guarantee questions, the deciding factor is where your evening starts and which site the boat uses. Skip a listing that does not state its harbour until you have confirmed it, since Kona-side and Hilo-side departures are far apart.

The bank is clear about site choice: "Two well-known Kona manta sites are Manta Village off Keauhou and Manta Heaven near the airport, and each operator decides which site it uses that night." So I read the Manta Village line on the Manta Magic card as that listing's own statement, and I would not assume the other two go to the same water.

I know Keauhou Bay from the shore. In June 2021, from the small park at Keauhou Bay I watched the last pink fade off the water and the first boat lights blink on offshore. A cool breeze came down from the hills smelling of plumeria and diesel. Out past the point the lights glowed blue green on the surface, and I could hear laughter carrying across the dark water. I was on land that evening, not on any of these boats, but the shoreline told me plenty about the setting.

What I took from that: bring a warm layer for any evening on the Kona coast, since the breeze off the hills turns cool once the sun is gone.

One more detail I find useful: "Kona reef mantas are identified individually by the spot pattern on each manta's belly." If that kind of thing interests you, ask the operator whether its crew talks about the individual mantas, and treat any answer as the operator's claim. Skip the Kona night if you are based in Hilo with no spare evening, and look at our snorkeling page for daytime options instead.

What to Check Before Booking

Before you pay for any of these listings, check four things: the departure harbour, what is included, the no-sighting terms, and the weather cancellation policy. Skip any listing whose operator cannot answer all four.

Start with the plain limit. "Manta ray sightings on any one night are not guaranteed, and operators handle weather cancellations and no-show nights differently." That is why I weigh the free-next-trip line on the Big Island Manta Ray Night Snorkel listing seriously, and why I would ask the other two operators directly about their no-sighting terms.

My advice: do not leave a manta night for the final evening of your trip. Boat tours are among the first to be rescheduled for weather and ocean conditions, and a cancellation on your last night leaves no room to rebook. I would book an early evening in the stay and keep a second one free.

Kīlauea's eruption is episodic, so I send readers to Hawaiʻi Volcanoes National Park and the USGS Hawaiian Volcano Observatory updates, not to any tour's promise of lava.

I would not assume a listing includes a wetsuit or flotation when its card does not mention it.