We've done the night manta ray snorkel with Kona Ocean Adventures many times, and there's a reason…read morewe keep coming back! This was my 5th trip, my parents' 9th, and my kids' 3rd--and we wouldn't choose anyone else. The crew is consistently professional, knowledgeable, and focused on both safety and making sure everyone has an unforgettable experience. They genuinely care about the mantas and the guests, and you can tell they love what they do. Every trip has been incredible, and Kona Ocean Adventures has continued to deliver a first-class experience! If you're trying to decide which company to book with, stop looking--Kona Ocean Adventures is the one. We'll be back again and again. Mahalo for another amazing night!

What an amazing experience! We were a group of scuba divers and a snorkeler. We had 2 dive/snorkel…read morespots. This first dive we saw a shark, fish, and an eel. The 2nd dive was incredible!! We sat at the bottom of the ocean with lights and HUGE manta rays swam all around us! Kate was our dive guide and I can't remember the snorkel guides name but they were both great! I hadn't dove in about 2 years and Kate was so patient with me. I was a little nervous but she made me feel at ease. My husband even saw a baby tiger shark when he was snorkeling! They provided fruit, hummus sandwiches and drinks. If you're on the Big Island this is a must! They even took go pro videos and sent them to us!!

The customer service is amazing. We booked a whale watch tour in 2023 but did not see any whales so…read morethey provided a voucher for another trip. We are back on the island and booked a snorkel tour. Unfortunately I had some serious stomach issues and Tom bent over backwards to help us try and get on the water. We have limited days left on the island and it looks like we won't make it out so he has given us credit for the next time we visit. 5 stars all around. Amazing.

We got onto the boat at 8 am. It's a large two story open air boat. The staff is very nice and…read morehelpful. We headed towards Captain cook's monument and snorkeled in famous Kealakekua Bay. It's the BEST SNORKELING in all Hawaii's islands. It has a diversity of thousands of colorful fish and coral. It's the inspiration for the movie finding Nemo. After 1-2 hours of snorkeling, we boarded the boat to try the water slide and second floor diving board. It was super fun. The crew provided sandwiches, chips, fruit and soda/water. On the way back we hugged the coastline for great pictures. We stopped and watched a pod of dolphins who came to the boat. It was a magical tour for any snorkeling lover. The crew and boat were outstanding. We loved it.

We took a sunset catamaran trip with visiting friends for my 65th birthday. Eric and Yumi took…read moregreat care of us. They are kind, gracious, friendly, professional and hospitable. Their catamaran is beautiful, clean and well kept. I can't thank them enough for a memorable birthday cruise. I highly recommend booking with this lovely couple for a great experience. Mahalo nui loa. -Nili, Brian, Mark & Jenny

What a fantastic way to start our trip. We saw dolphins, snorkeled in some beautiful areas and had…read morea peaceful sail. Julia and Mike were awesome guides. So knowledgeable about the island waters. They were pleasant and nice. They took us out to areas they were not crowded which was awesome. We loved having a private catamaran, such a treat. This was the best water tour we have ever been on. Highly recommended over and over!!

Yesterday took my honey for his 75th on the 5hr snorkel excursion and it was AMAZING !!! We have…read moreknown Captain Cindy for 10 years and she is the BEST guide ever !! The group was nice and small and we all enjoyed each other snorkeling and seeing many varieties of fish and we saw many dolphin on our way !! The light breakfast was great and the lunch sandwiches were delicious !! I highly recommend going out with Cindy!!

Cindy and Erin were fantastic! Our family had so much fun snorkeling and learning about different…read moreareas on the coast! Highly recommend this tour!

This is a snalll group outing on. Zodiac boat. So think small…read more We went for the last Manta trip. they provide snorkel n mask n de fog spray. Wet suit tops and ankle floats. The con is your small group is in the same dive spot as at least 100 others from different boats. really crowded, i paid premium to be less crowded. We saw Mantas and had a nice event but prob not twice. With that many people , the water was murky. and the spot is opposite the Kona Airport. So 15 minutes by Zodiac, can be ruff

Sarah and cody did a wonderful job getting us there &back while discussing interesting sights and…read morefeatures along the way. They put us on a great reef with amazing snorkeling. Great support and company. Would highly recommend.

​My husband and I caught a 626lb Blue Marlin with Stretch (Captain) and Summer (Deck Hands) on The…read moreHula Girl on January of 2026. An experience that we'll never forget. We went out on the boat for a day, caught and release a 125 Blue Marlin and had such a great time, we decided to come back a few days later. Aside from the remarkable experience of reeling in this big girl, we felt completely at home on the boat. The cab is air conditioned, beautifully kept, has a television to watch the OMNI system or television channel of your choice (I prefer watching the fish!) Both the upper and lower deck are partially shaded, providing reprieve from the sun. We couldn't have asked for a better experience. Stretch and Summer were fun and down to earth and when it came time to catching fish they gave clear precise direction, making us feel confident and reassured. The fishing was unbelievable, the boat pristine and the guys top-notch. We were sore both from fishing and laughing. We can't wait to come back and do it again. - Jenny & Andre

A most amazing day. Great captain and crew, great boat. We caught 3 marlin and 1 tuna. Best day…read moreof fishing ever!!!!

Joe and Captain Ko made fantastic guides! Captain Coe kept the boat moving, and as still as…read morepossible well following whales, stingrays, turtles, dolphins, and probably more. We had a fantastic journey thanks Joe and Ko you guys are great!

This private boat tour with snacks was amazing. Captain Ko and Joe were great, so friendly and…read moreknowledgeable. We had an amazing nature adventure with late in the season whale, dolphins, turtle, eagle ray, octopus and so many fish. The most important part was feeling safe. At the end of the end of the trip Joe gave us an edited video of footage he took during the trip. What a great souvenir

Great crew, great experience! The fruit, hot cocoa and cookies were a particularly nice touch. I'd…read moredefinitely recommend Kamanu to family and friends. My only recommendation is to have the dry/semi-dry snorkels that prevent water seeping in the tube when submerged.

To those who are thinking about the Kamanu Sunset Cruise. They have a 48hr cancellation clause…read more and a 4% fee to cancel....reasonable.I called and left a 3 voice messages, 3 Text messages, and even 3 Emails 72 hrs before knowing we couldn't make the cruise. Absolutely no response or acknowledgement from this business.Ended up calling Chase to refute charges of $265. Obviously, not a way to run a business. Bottom line..if there's even a possibility you may need to cancel..good luck.