Snorkel with manta rays at night with a guided light-board setup
50 minutes
Snorkel gear, wetsuit, drinks
Head out from Keauhou Harbor for a nighttime snorkel where illuminated boards attract plankton—and manta rays—right below you. Float at the surface with a swim guide and watch the action for up to 40 minutes.
Minimum 6 passengers required for the tour to operate. Max weight is 270 pounds, and you must be able to swim 25 yards in the ocean without a life jacket. Not suitable for pregnant women or people with neck, back, or other injuries.
Tips are accepted; clarify the expected amount with Greetwell before booking.
Refund minus a 6% transaction fee with at least 24-hours notice. Full refund if the operator cancels due to weather, not meeting the minimum required passengers, or other unforeseen circumstances. No-shows are charged the full price.
You must weigh 270 pounds or less and be able to comfortably swim 25 yards in the ocean without a life jacket. This tour is not suitable if you are pregnant or have neck, back, or other injuries. Ages are 7 to 70, and minors must be accompanied by a paying adult supervisor.
Wear your swimsuit to the harbor. Bring a towel and a warm sweater, cover-up, or light jacket (it can feel cold when you get out of the water at night).
The tour needs a minimum of 6 total passengers to operate. If the minimum is not met, you can choose a full refund, rebook to a different tour, or pay for additional seats to run the scheduled tour.
Keauhou Harbor, Kailua Kona, HI
The crew makes all the difference here, and reviewers can't stop raving about the personable guides and captains who lead these tours. Jason gets particular love for his jokes and energy, while Carmelle earns praise for going above and beyond with booking logistics. The small group size (typically 10-12 people max) consistently impresses guests who appreciate the more intimate, less crowded experience compared to larger operators. Most tours focus on manta ray encounters and snorkeling at Captain Cook's monument, with guests reporting incredible wildlife sightings and clear waters. There are a handful of complaints worth noting. A few guests experienced last-minute cancellations due to weather or water conditions, which understandably frustrated travelers with tight schedules. One negative review claims their manta tour was "packed like sardines" near shore with no mantas, though this seems to be an outlier given the overwhelming number of guests reporting amazing manta encounters. The boat ramp can create delays at the end of tours, so build in some buffer time. The manta snorkel tours get consistent five-star enthusiasm from people calling it a "once in a lifetime" experience. Guides like Sara can even identify individual mantas by name, adding educational value. The operation feels well-organized with safety-focused staff who also know how to keep things fun and relaxed.
Had a stellar time seeing the Manta Rays with Hawaii Oceanic! The crew was fun and informative. The guide Sarah was able to identify some of the many manta rays by name for our group which really brought the experience to life- thank you ladies!
Mary Williams
April 2, 2026
Had a stellar time seeing the Manta Rays with Hawaii Oceanic! The crew was fun and informative. The guide Sarah was able to identify some of the many manta rays by name for our group which really brought the experience to life- thank you ladies!
Mary Williams
April 2, 2026