Ocean Eco Tours

Kona Manta Ray Night Snorkel & Big Island Ocean Tours

Experience the magic of Hawaii’s Big Island with Ocean Eco Tours. Escape the crowded commercial boats and embark on intimate, couple-owned and operated marine adventures—from world-famous night snorkels with majestic manta rays to custom offshore safaris and pristine coral reef explorations.

People ready to snorkel in clear water big island hawaii

When looking for the best boat tours in Kailua-Kona, group size and local expertise make all the difference. At Ocean Eco Tours, we specialize in small-group and private boat charters designed to give you an up-close, respectful, and uncrowded encounter with Hawaii’s marine life.

Intimate Group Sizes: No cattle boats. Enjoy personalized attention from our expert marine naturalists. Fewer people in the water means more personal space, better visibility, and zero competition with crowds for marine life sightings.

World-Famous Manta Ray Night Snorkel: Witness the grace of reef manta rays feeding in their natural habitat just off the Kona Coast.

Diverse Big Island Marine Life: Keep your eyes peeled for Hawaiian spinner dolphins, humpback whales (seasonal), green sea turtles (honu), and vibrant reef fish.

Eco-Friendly & Sustainable: Its in our name! We adhere to strict conservation standards to protect Kona's fragile marine ecosystem for generations to come.

Why Choose Ocean Eco Tours for Your Big Island Adventure?

Our Tours

Manta ray night dive swimming in dark water

Captain Brenden swimming near whale shark underwater in Big Island

School of yellow fish underwater reef in Big Island snorkeling

Night Manta Ray

Best manta ray night snorkel in Kona.

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Offshore Safari

Explore Kona’s Diverse Reef & Pelagic Marine Life

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Private Kealakekua Bay

Kealakekua Bay Snorkeling Tour in Kona

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Whale watching humpback whale swimming in deep ocean in Big Island

Monet from Ocean eco tours diving with large tiger shark underwater

Kealakekua Bay & Manta

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Whale Watch

Whale season is coming up!!

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Private Charter

Whale season is coming up!!

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What do others think of Ocean Eco Tour?

Monet and Branden were amazing and very accommodating even for a non-swimmer. I highly recommend this tour without hesitation.

- Marco G.
Fantastic experience. Perfectly organized and shared in a small group. The guys are a young couple passionate about the ocean who enjoy explaining and taking care of their boat. Unlike other tours, they are more respectful of the animals with precise instructions on how to behave. Highly recommended.

- Elena C.
We just did the Open Ocean Safari with Ocean Eco Tours for the second time, and it was even more amazing than we remembered! Monet and Brendan are both incredible. They are knowledgeable about the ocean and the wildlife, but what really stood out to us was how genuinely passionate they are about what they do. They have the best energy and made the whole experience feel so fun and personal.

You can tell they truly care about the ocean and love sharing it with people. We learned so much, felt safe, had an amazing time, and saw some incredible animals including Pilot Whales. This has become our Kona must do while visiting!!

- Katherine B.
We had a wonderful time on our Ocean Safari! We were able to see bottlenose dolphins and false killer whales on our trip! Monet and Brendan made our time special with their kindness and extensive knowledge of the marine life we could encounter. Would 100% recommend to anyone visiting the Big Island.

- Laynie G.
This was by far one of the best days I’ve had in Hawaii. Monet and Brenden were so chill, but so professional and great ocean stewards, and knew exactly where to find all the dolphins!

- Ryan T.
We had the best time! We saw three species of dolphins, and got to swim with two of them. Expert guides (s/o Monet, Brendon), thoughtful service, and amazing vibes. 11/10 recommend.

- Austin V.
Definitely a bucket list experience. We saw several rays feeding and barrel rolling – they got SO CLOSE. Monet and Brendan were so sweet. Monet knew the names of several of the rays we saw and Brendan knew just where to find them. Thanks, guys. It was so so fun.

- Lauren P.
The manta ray tour was so fun!! it was a smooth boat ride to the place and back. we got to see many mantas near us, it was truly a spectacle!!

- Samantha P.
I cannot recommend ocean eco tours enough!!!! We did the manta night snorkel and from start to finish it was a lovely adventure! Monet was incredibly kind to all the guests and really made us feel welcomed! We started the trip out to where the mantas were with a beautiful sunset and got to see so many mantas in a fun and safe way. The whole excursion was genuinely breathtaking and left us in awe! Thank you Ocean Eco Tours for a once in a lifetime experience and great memories!!!

- Savana S.
Monet and Brendan were amazing! They found a big pod of spotted whales for us and made the experience unforgettable!

- Ben W.

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